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 'Freemanc' 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 'HNConqc' 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 'DNBc' 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 'EHRc' 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 'HistWc' 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 'LibLanc' 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 'TrCymmc' 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

FITZOSBERN, WILLIAM (bu f. 1071), iarll Henffordd, arglwydd Breteuil yn Normandy | Y Bywgraffiadur Cymreig

FITZOSBERN, WILLIAM (bu f. 1071), iarll Henffordd, arglwydd Breteuil yn Normandy

Enw: William Fitzosbern
Dyddiad marw: 1071
Rhyw: Gwryw
Galwedigaeth: iarll Henffordd, arglwydd Breteuil yn Normandy
Maes gweithgaredd: Teuluoedd Brenhinol a Bonheddig
Awdur: Ceinwen Hannah Thomas

câr a chyfaill William I. Efe oedd y cyntaf i gymell William i geisio goresgyn Lloegr a daeth yn bennaf gŵr yn y gwaith hwnnw; efe a fu'n gyfrifol, yn bennaf, am sefydlu teyrnasiad y Normaniaid ar arfordir Cymru ac am oresgyn Gwent. Daeth yn iarll Henffordd yn gynnar yn 1067, a bu i'w ymosodiadau trwm ar dir y goror beri i Bleddyn a Rhiwallon ap Cynfyn o Bowys ymuno fel cynghreiriaid â Saeson Mercia yn 1067 a pharhau yn y cyswllt hwnnw nes i wŷr Mercia ymostwng yn derfynol yn 1070. Gorchfygodd Fitzosbern Faredudd a Rhys ab Owain, Deheubarth, a Chadwgan ap Meurig, Morgannwg (c. 1070), adeiladodd gestyll yn Wigmore, Clifford, Ewias Harold, Trefynwy, a Chepstow, a gorchfygodd Gwent. Ystyrid yn Lloegr ei fod yn ŵr gerwin, eithr yr oedd yn gymodlawn yn ei ymwneud â Chymry Gwent, gan adael i amryw ohonynt gadw eu tiroedd ar y telerau ffafriol a gawsent gan Gruffydd ap Llywelyn; ni chollodd mo'r meiri Cymreig eu lle ychwaith. Cyn ymadael â'r wlad am y tro diwethaf daeth i delerau â Maredudd ab Owain a chaniatáu iddo drefedigaeth (‘vill’) Ley. Er mwyn cryfhau y gyfres o gestyll amddiffynnol ar y goror cysylltodd â hwynt fwrdeisdrefi y rhoddwyd siarteri iddynt, gan ddenu pobl i ymsefydlu ynddynt trwy roddi iddynt amodau byw ffafriol; e.e. rhoes i'w denantiaid Ffrengig yn Henffordd y breiniau rhyddfrydig a roesai i'w bobl yn Breteuil. Daeth y breiniau hyn yn batrwm i'r siarteri a roddwyd gan amryw o'r arglwyddi Normanaidd i'w bwrdeisdrefi hwythau, a bu ganddynt ddylanwad mawr yng Nghymru gan fod Henffordd yn cael edrych arni yn gyffredinol fel patrwm o fwrdeisdref. Lladdwyd Fitzosbern mewn brwydr yn Cassel, 20 Chwefror 1071, a chladdwyd ef yn Cormeilles yn Normandi.

Awdur

Dyddiad cyhoeddi: 1953-54

Hawlfraint Erthygl: