| | Owain Fawr Gwynedd 1087–1169 Gwladys ferch Llywarch …–… | | |
Gwenllian Gwunedd-Powys …–… | | |
| | Susanna verch Gruffydd 1095–… Madog Powys ap Maredydd …–… | | |
| | Gruffyd Gwunedd-Powys 1055–1136 Angharad verch Owain 1065–… | | |
| | Cynan Gwunedd-Powys 1014–1063 | | |
| | Maelcocre of Leinster 1000–… | | |
| | | | | | Brian Boru King of Ireland 940–1014 | | | | | | | | | Aurchaid King of WestConnacht 910–… | | | | Murchad King of Connacht 875–945 |
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| | | Olaf Sitricsson Dublin …–981 Gormlaith Leinster …–1030 | | | | | | | | | | | | Mael Morder Airther-Liphi …–917 | | |
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