Isabel De Strigoil was born in Pemrokeshire, Wales. Isabel De Strigoil's father was Richard Strongbow De Clare and her mother was Eve MacMurrough. Her paternal grandparents were Gilbert Strigoil de Clare and Isabel Elizabeth De Beaumont; her maternal grandparents were Dermot MacMurchada Diarmait MacMurrough and More O'Toole. She had a brother named Gilbert. She had a half-sister named Basile. She died in 1240 in Pembrokeshire, Wales.
‌Isabel De Strigoil and William were married in a religious ceremony in August 1189 in London, England. They had five sons and five daughters, named Earl of, Richard, Earl of, Walter, Anselm, Maud (Matilda), Sibyl, Eve, Isabel and Joane.
Earl of was born in 1190.
Richard was born about 1191.
Maud (Matilda) was born about 1192 in St. David's Church, Pembroke, Pembrokeshire, Wales. She died on March 27th, 1248.
Earl of was born in 1193.
Walter was born in 1195.
Anselm was born in 1196.
Sibyl was born in 1198.
Eve was born in 1200.
Isabel was born on October 9th, 1200 in Pembroke, Pembrokeshire, Wales. She died at the age of 39 on December 17th, 1239 in in childbed at Hereford, Herefordshire, England. She was buried in Beaulieu Abey.
Joane was born in 1202.