| Father | King Cennétig mac LORCÁIN of Tuadmumu (896 - 951) |
| Mother | Bé Binn INION URCHADH (900 - 952) |
| Sibling | Brian Bóruma MAC CENNETIG High King of Ireland (941 - 1014) |
| Sibling | Donchuan O'BRIEN (920 - 944) |
| Sibling | Lactna MACCENNÉTIG king of North and South Munster (921 - 954) |
| Sibling | Niall MAC CENNEDI (923 - ) |
| Sibling | Mathgamain Mac Cennetig, OF THOMOND King (924 - 976) |
| Sibling | Abbot of Terryglas Marcán MACCENNÉTIG (924 - 1010) |
| Sibling | Eichtigern MACCENNETIG (925 - 1010) |
| Sibling | Dermott Mac CENNEDI (929 - ) |
| Sibling | Anluan MACCENNETIG (930 - ) |
| Sibling | Conn CENNEDI (933 - ) |
| Sibling | Siguard JARL (947 - 1014) |
| Sibling | Emperor of Ireland Brien MAC CENNETIG Brian Barouma (960 - 1014) |
| Sibling | Mathgamain MAC CENNÉTIG KING OF MUNSTER ( - 976) |
| Sibling | Anlón MAC CENNETIG ( - ) |
| Sibling | Archiarus MACCENNETIG ( - ) |
| Sibling | Conchobar MAC CENNETIG ( - ) |
| Sibling | Donncuan MAC CENNETIG ( - ) |
| Sibling | Dub THOMOND ( - ) |
| Sibling | Dub MAC CENNETIG ( - ) |
| Sibling | Echthighern MAC CENNETIG ( - ) |
| Sibling | Finn MAC CENNETIG ( - ) |
| Sibling | Finn THOMOND ( - ) |
| Sibling | Flann MAC CENNETIG ( - ) |
| Sibling | Lachtna MAC CENNETIG ( - ) |
| Sibling | Marcán MAC CENNETIG ( - ) |
| Sibling | unknown MAC CENNETIG ( - ) |