New France Genealogy
Montjoie Saint Denis!
Family: Prince of Wales Llewellyn / verch Llywarch, Tanglwyst (F9929)
ap Owain, Iorwerth (1130-1184) 
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verch Madog, Margaret (1134- )
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| ap Llywarch, Llywarch (1139- ) |
| verch Llywarch, Tanglwyst (1143- )
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| Prince of Wales Llewellyn (1173-1240)
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| verch Llywarch, Tanglwyst (1168- )
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verch Llewellyn, Fawr Gwladys (1194-1251)  |