A PHP Error was encountered

Severity: Notice

Message: DOMDocument::loadXML(): failed to load external entity "/opt/rh/httpd24/root/var/www/yba2/bib.ent" in Entity, line: 1

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'TPenntc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'Toursc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'EdwJonc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'MusRelc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'ArcCambc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'GJWilc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'GrPenc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'GJWilc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'TLlMorc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::loadXML(): Entity 'InvFlc' not defined in Entity, line: 5

Filename: controllers/Article.php

Line Number: 118

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 118
Function: loadXML

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/awduron.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 129

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 129
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/awduron.xml"

Filename: helpers/article_helper.php

Line Number: 129

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 129
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 137

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 137
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 140

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 140
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml"

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 297

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 297
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml"

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 297

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 297
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml"

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 297

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 297
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml"

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 297

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 297
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml"

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 297

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 297
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/llyfryddiaeth.xml"

Filename: helpers/article_helper.php

Line Number: 251

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 251
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 297

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 297
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(https://yba2-prawf.llgc.org.uk/assets/xml/awduron.xml): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden

Filename: helpers/article_helper.php

Line Number: 322

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 322
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: DOMDocument::load(): I/O warning : failed to load external entity "https://yba2-prawf.llgc.org.uk/assets/xml/awduron.xml"

Filename: helpers/article_helper.php

Line Number: 322

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 322
Function: load

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: helpers/article_helper.php

Line Number: 331

Backtrace:

File: /opt/rh/httpd24/root/var/www/yba2/application/helpers/article_helper.php
Line: 331
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 133
Function: transformToXml

File: /opt/rh/httpd24/root/var/www/yba2/application/controllers/Article.php
Line: 77
Function: xsltTransform

File: /opt/rh/httpd24/root/var/www/yba2/index.php
Line: 315
Function: require_once

DAFYDD DDU ATHRO o HIRADDUG (cyn 1400), gŵr y cysylltir ei enw â'r gramadeg neu'r ‘llyfr cerddwriaeth’ cyntaf sydd gennym | Y Bywgraffiadur Cymreig

DAFYDD DDU ATHRO o HIRADDUG (cyn 1400), gŵr y cysylltir ei enw â'r gramadeg neu'r ‘llyfr cerddwriaeth’ cyntaf sydd gennym

Enw: Dafydd Ddu Athro O Hiraddug
Rhyw: Gwryw
Galwedigaeth: gŵr y cysylltir ei enw â'r gramadeg neu'r ‘llyfr cerddwriaeth’ cyntaf sydd gennym
Maes gweithgaredd: Llenyddiaeth ac Ysgrifennu; Barddoniaeth; Ysgolheictod ac Ieithoedd
Awdur: Griffith John Williams

hynny yw, llyfr sy'n trafod celfyddyd cerdd dafod, ac a gynnwys hefyd dalfyriad Cymraeg o'r gramadeg Lladin a ddefnyddid yn ysgolion yr Oesoedd Canol. Ni wyddom odid ddim amdano, ond gan fod Moel Hiraddug yn enw ar fryn yn ymyl Rhuddlan, efallai fod Syr Thomas Williams yn iawn pan ddywed, yn Llsgr. Mostyn 110, mai gŵr ‘O Degeingyl’ ydoedd. Myn y Dr. John Davies o Fallwyd yn Llsgr. Peniarth 49 ei fod yn ‘archdeacon of Diserth,’ a chan ei fod yn cael ei alw'n ‘athro’, a'r gair hwnnw (fel y dywedir yn y llyfr cerddwriaeth) weithiau'n golygu math arbennig o glerigwr, efallai fod y Dr. Davies yn cofnodi rhyw draddodiad a glywsai yn ei fachgendod yng nghyffiniau dyffryn Clwyd. Yn y 18fed g., mynnid fod ei feddfaen yn eglwys Tremeirchion, ac arno arysgrif yn cynnwys yr enw David F'Korel, ond y mae hynny'n drwyadl ansicr. Ffynnai traddodiad amdano fel gŵr hyddysg ac fel dewin, a mynnai'r enwog Dr. John Dee yn 1582 mai ef oedd Roger Bacon.

Yr oedd ysgolheigion yr 16eg g. yn priodoli'r ‘llyfr cerddwriaeth’ iddo ef ac i Einion Offeiriad. Blodeuai Einion tua dechrau'r 14eg g., ac felly awgrymir weithiau mai ychwanegu at lyfr Einion a wnaeth Dafydd Ddu. Ni sonnir am y ddau yn y copïau cynharaf ond fel gwŷr a luniodd dri mesur — tri chopi yn mynnu mai gwaith Einion oeddynt, a'r trydydd (sef yr un a geir yn Llsgr. Peniarth 20, a ysgrifennwyd c. 1400, neu efallai cyn hynny) yn dywedyd mai Dafydd Ddu Athro a'u dychmygodd. Priodolir cywyddau iddo hefyd. Ond efallai mai'r peth mwyaf diddorol a gysylltir â'r enw ydyw'r cyfieithiad Cymraeg o ‘Wasanaeth Mair,’ a gyhoeddwyd yn y Myvyrian Archaiology. Ni chyfeirir ato yn y copïau cynharaf, ond dywed y Dr. John Davies yn 1631 mai ei waith ef ydyw ‘hyd y mae pawb yn tybieid.’ Ond nid oes neb hyd yn hyn wedi datrys y broblem sydd ynglŷn â'r cyfieithiad hwn.

Awdur

Dyddiad cyhoeddi: 1953-54

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