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William De Cogan

William De was born in 1340. William De's father is Richard De Cogan and his mother is Mary De Montague. His paternal grandparents are Thomas De Cogan and Petronella; his maternal grandparents are Baron William De Montague and Elizabeth De Monfort. He is an only child.

Ancestor Pedigree Chart
- John Cogan
  - b.~  1243
  
  Thomas De Cogan
  - b.~  1286
  
  Maurice Fitz Maurice
  
  Julianna FitzMaurice of Offaly Fitzgerald
  
  Emmeline Longspee
  - b.~  1250
  
  Richard De Cogan
  - b.1299
  
  Petronella
  
  William De Cogan
  - b.1340
  
  Simon De Montague
  - b.~  1245
  
  Baron William De Montague
  - b.1275
  
  Hawise De St Amand
  - b.~  1252
  
  Mary De Montague
  - b.1313
  
  Elizabeth De Monfort
  - b.1271

Details of William De's family with Isabel Loring