 /¯¯ Cosmus (--?--) Duke of Florence
/¯¯ Mathias (--?--)
/¯¯ Otterus (Othoer) (--?--) Baron of Gherardini, Lord in Tuscany
/¯¯ Dominus (Lord) Other Geraldini Baron of Windsor
/¯¯ Walter Fitz Other de Windsor Keeper of the Forest
/¯¯ Gerald Fitz Walter de Windsor Constable of Pembroke Castle
| \__ Beatrice (--?--)
/¯¯ Maurice fitz Gerald de Windsor, Lord of Llanstephen
| | /¯¯ Hywel Dda (The Good) ap Cadell
| | /¯¯ Owain ap Hywel
| | | \__ Elen ferch Llywarch of Dyfed
| | /¯¯ Einion ap Owain
| | | | /¯¯ Llywelyn Ap Merfyn
| | | \__ Angharad (Ankaret) verch Llewelyn
| | /¯¯ Cadell ap Einion
| | | \__ Ellenor (--?--)
| | /¯¯ Tewdwr Mawr ap Cadell
| | | | /¯¯ Gwerystan ap Gwaithfoed
| | | \__ Elinor verch Gwerystan
| | | \__ Nest verch Cadell
| | /¯¯ Rhys Mawr (The Great) ap Tewdwr
| | | | /¯¯ Gwyn ap Rhytherch
| | | \__ Gwenllian ferch Gwyn
| \__ Nesta (--?--) Princess of Deheubarth
| | /¯¯ Cynfyn ap Gwerystan
| | /¯¯ Rhiwallon ap Cynfyn
| | | | /¯¯ Owain ap Hywel (see above)
| | | | /¯¯ Maredydd ap Owain
| | | | | \__ Angharad (Ankaret) verch Llewelyn (see above)
| | | \__ Angharad verch Maredydd
| \__ Gwladys verch Rhiwallon
/¯¯ Thomas Fitz Maurice Lord of Connello
| | /¯¯ Hugh de Montgomery
| | /¯¯ Roger 1 (The Great) de Montgomery Seigneur de Montgomery
| | | | /¯¯ Gorm "The Old" Hardeknudsson King of Denmark
| | | | /¯¯ Harald I "Blaatand" (Bluetooth) Gormsson King of Denmark
| | | | | \__ Thyre "Danebod" (of Jutland) Haroldsdatter Queen of Denmark
| | | | /¯¯ Herfast de Crêpon
| | | | | | /¯¯ Olof "Mitkg" Bjornsson King of Sweden
| | | | | \__ Gyrithe (Cyrid?) Olafsdotter Queen of Denmark
| | | | | \__ Ingeberg Thrandsdotter
| | | \__ Sibell de Crêpon
| | | \__ Cyrid (--?--) Queen of Sweden
| | /¯¯ Roger de Montgomery 1st Earl of Shrewsbury
| | | | /¯¯ Bernard (The Dane) de Harcourt
| | | | /¯¯ Torf de Harcourt
| | | | | \__ Sphreta de Bourgoyne
| | | | /¯¯ Touroude de Pont-Audemer Seigneur de Pont-Audemer
| | | | | | /¯¯ Hugues Barbatus
| | | | | | /¯¯ Lancelot de Briquebec
| | | | | \__ Eremburga or Ertemberge de Briquebec
| | | \__ Joscelina (Torfulus) de Pont-Audemer
| | | | /¯¯ Herbastus de Crêpon
| | | \__ Woerta (Wevia or Sainfrie) de Crêpon
| | /¯¯ Arnulf de Montgomery
| | | | /¯¯ Yves de Creil Seigneur de Creil
| | | | /¯¯ Fulk de Belesme Seigneur de Corbonais & Rolais
| | | | /¯¯ Yves I de Creil Seigneur de Bellême & Alençon
| | | | /¯¯ Guillaume I de Bellême Comte d'Alençon & Bellême
| | | | | | /¯¯ Guillaume I de Ponthieu
| | | | | | /¯¯ Hilduin de Ponthieu Comte de Montreuil
| | | | | \__ Gordeschilda de Ponthieu
| | | | | \__ Hersende (--?--)
| | | | /¯¯ Guillaume II de Talvas Comte d'Alençon & Bellême
| | | | | \__ Mathilde Conde-sur-Noirau
| | | \__ Mabel Talvas Countess Alençon, Bellême & Seez
| | | | /¯¯ Arnulf de Beaumont
| | | \__ Hildeberge de Beaumont
| \__ Alice de Montgomery
| | /¯¯ Lorcán mac Lachtnae King of Dál Cais
| | /¯¯ Cennétig mac Lorcán King of Tuadmumu
| | /¯¯ Brian Bóruma King of Ireland
| | | | /¯¯ Urchad mac Murchada King of West Connaught
| | | \__ Bé Bind
| | /¯¯ Tadg Ua Briain King of Thomond
| | | | /¯¯ Cear-Bhall (--?--)
| | | \__ Eachraidh (--?--)
| | /¯¯ Toirrdelbach Mór Ua Briain King of Munster
| | | | /¯¯ Máel Muaid King of Fircall
| | | | /¯¯ Lorcán (--?--)
| | | | /¯¯ Gilla Brigte King of Fircall
| | | \__ Mor mac Gillla
| | /¯¯ Muirchertach Ua Briain King of Munster
| | | | /¯¯ Cellach mac Cerbaill King of Osraige
| | | | /¯¯ Donnchad mac Cellaig King of Osraige
| | | | | \__ Echard mac Matudán
| | | | /¯¯ Gilla Pátraic mac Donnchada King of Osraige
| | | | | | /¯¯ Fáelán Muman King of Déisi
| | | | | \__ Aife mac Fáelán
| | | | /¯¯ Tadg mac Gilla Pátraic
| | | \__ Derbforgaill mac Tadg
| \__ Lafracoth Ua Briain
| | /¯¯ Tadg mac Gilla Pátraic (see above)
| | /¯¯ Diarmit mac Taidg King of Osraig
| \__ Dubchoblaig (--?--)
/¯¯ John Fitz Thomas of Shanid, Lord of Connello, Decies and Desmond
| \__ Sadhbh (--?--)
/¯¯ Sir Maurice Buidhe fitz John
| \__ (--?--) (--?--) wife of O'Cinneidigh
<-- Sir Richard fitz Maurice Knight of Kerry
|