Hereford, ravaging the lands as far as the River Lugg. In 1068, they joined Earls Edwin of Mercia and Morcar of Northumbria in their attacks as well. In 1070, Gruffydd's sons, Idwal ap Gruffydd and Maredudd ap Gruffydd, challenged Bleddyn. Rhiwallon, Idwal and Maredudd all died in the Battle of Mechain. Bleddyn was the king of both Gwynedd and Powys. In 1073, Robert of Rhuddlan stealthily established his forces on the banks of the River Clwyd and attempted to ambush and capture Bleddyn. He narrowly failed, but seized valuable booty in raids further south. Bleddyn was killed in 1075 by King Rhys ab Owain of Deheubarth, having been betrayed by the lords of Ystrad Tywi. When Rhys was later defeated at the 1078 Battle of Goodwick (or Pwllgwdig) by Bleddyn's successor, Trahaearn ap Caradog, and killed by Caradog ap Gruffydd of Gwent shortly afterwards, this was hailed as vengeance "for the blood of Bleddyn ap Cynfyn, his first cousin." After his death, Gwynedd was seized by Trahaearn and later recovered for the House of Aberffraw by Gruffudd ap Cynan; but in Powys, Bleddyn was the founder of a dynasty which lasted until the end of the 13th century. Legacy Bleddyn's legacy in the Chronicle of the Princes was that of a benevolent ruler: Bleddyn was also responsible for a revision of the Welsh law which continued in force in his dynasty's domain of Powys. Gwynedd's Venedotian Code noted that he changed the legal composition of the homestead () for purposes of inheritance etc., varying its size depending on the social status of the owner. The homestead of a nobleman () was 12 Welsh acres, that of a serf ( , ) had 8, and that of a bondsman or slave (Med. ) had 4. (The text, however, notes the uncommonness of this division and says it was generally understood as 4 acres regardless of status.) Children Bleddyn had at least five children: Maredudd (d. 1132) Cadwgan (d. 1111) Madog Rhirid (1049–1088) Iorwerth (d. 1111) Notes References Citations Bibliography . . . . & Further reading 1075 deaths Monarchs of Gwynedd Monarchs of Powys House of Mathrafal 11th-century Welsh monarchs Year of birth unknown