Iorwerth was apportioned the commotes of Arfon and Arllechwedd, with his seat at Dolwyddelan, with Maelgwn retaining Ynys Môn, and with Cynan receiving Meirionydd.
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In 1146 news reached Prince Owain ap Cynan of Gwynedd that his favoured eldest son and heir, the elding, Rhun, died.
In 1170 it was the site of a battle when Hywel ab Owain Gwynedd landed with an army raised in Ireland in an attempt to claim a share of the kingdom of Gwynedd following the death of his father Owain Gwynedd.
Gwynedd | Owain Glyndŵr | Bangor, Gwynedd | Bala, Gwynedd | Owain Gwynedd | Hywel Dda | Kingdom of Gwynedd | Maelgwn Gwynedd | Owain Lawgoch | Owain | Alys ferch Owain Glyndŵr | Tal-y-llyn, Gwynedd | Owain Goch ap Gruffydd | Owain Brown | Maredudd ab Owain | Hywel Bennett | House of Gwynedd | Bethesda, Gwynedd | Saint Hywel | Rhun ab Owain Gwynedd | Owain Phyfe | Owain Glyndŵr (Owen Glendower) | Owain ap Hywel Dda | Maredudd ap Cynan ab Owain Gwynedd | Maelgwn ab Owain Gwynedd | Lower Gwynedd Township, Montgomery County, Pennsylvania | Llywelyn the Elder ap Maredudd ap Cynan ab Owain Gwynedd | kingdom of Gwynedd | Hywel Williams | Hywel Dda Local Health Board |