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Female Agnes de St. John Click to view Agnes de St. John in the family tree

Agnes de was born in 1275 in Basing, Hampshire, England.  Agnes de's father was John de St. John , Lord of Basing, Sir and her mother was Alice FitzPiers.  Her paternal grandparents were Robert de St. John , Lord of Basing, Sir and Agnes de Cantelou; her maternal grandparents were Reginald FitzPiers , Lord of Blaen Llyfni and Alice de Stanford. She had a brother named John 1st Baron de.  She was the younger of the two children.  She died at the age of 70 on June 11th, 1345.


Agnes de's family with Hugh de Courtenay , 1st Earl of Devon

‌Agnes de and Hugh de were married in a religious ceremony in 1292.

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