/-Steven PERROT
/-Andrew(Sir) PERROT
| \-Elen Verch MEIRCHION
/-William PERROT
| | /-Roger DEMORTIMER
| | /-Ralph, Lord of Wigmore DE MORTIMER
| | | \-Hawise Alix DEVEXIN DEVALOIS
| | /-Hugh Wigmore DE MORTIMER
| | | | /-Walchelin Walkelin DE FERRERS
| | | | /-Henry Henri DE FERRERS
| | | | | \-Mahaut DE DURBURY
| | | \-Milicent MILLICENT / MELISANDE /DE FERRERS
| | | | /-Engenulph Seigneur del AIGLE
| | | \-Berthe Roberts DE L' AIGLE
| | | \-Richeride RICHVARIDE
| | /-Hugh 'Baron' DEMORTIMER
| | | \-Maud LONGESPIC
| | /-Roger II Sir "Lord of Wigmore" DE MORTIMER
| | | | /-Ancitel DEBAYEUX
| | | | /-RANULPH MESCHINES
| | | | | \-Poppa DE SELIS
| | | | /-Ranulf DEMESCHINES
| | | | | | /-Richard III th Normand DENORMANDIE
| | | | | \-Alix De NORMANDY
| | | | /-Ranulph LEMESCHIN
| | | | | | /-Richard D AVRANCHES
| | | | | \-Maud D AVRANCHES
| | | | | | /-Harlevin CONTEVILLE
| | | | | \-Emma CONTEVILLE
| | | | | \-Harlette FALAISE
| | | | /-William DEMESCHINES
| | | | | \-Lucy CHESTER
| | | \-Maud DEMESCHINES
| | | \-Cecily DERUMILLY
| \-Sined MORTIMER
| | /-William de FERRERS
| | /-Walcheline DEFERRERS
| | | | /-William PEVERELL
| | | \-Margaret PEVERELL
| | | \-Avice DELANCASTER
| \-Isabel DEFERRIERES
| | /-Ralph TOENI
| | /-Roger DETOENI
| | | \-Alice HUNTINGDON
| \-Goda DETOENI
| | /-Baldwin III of HAINAUT
| \-Ida Gertrude DEHAINAULT
| \-Yolande VONWASSENBERG
/-Peter PERROT
| \-Jane HERTFORD
/-Stephen PERROT
| \-Mary KYNASTON
/-John PERROT
| | /-William KASTEL
| \-Mabel KASTEL
/-Sir Knight Peter PERROT
| | /-Philip JOYCE
| | /-John ("Sir" Sherrif of Pembrokeshire) JOYCE
| \-Jane JOYCE
Sir Stephen PERROT
| /-Sir Richard HAROLD
\-Alice HAROLD
\-Eleanor HILL