Gerard DE GOURNAY of Caistor
- Born: Abt 1066, Gournay-en-Bray, Seine-Inferieure, Normandy, France
- Married: Bef 1091
- Died: After 1104, Caistor next Yarmouth, Flegg, Norfolk, England
GERARD DE GOURNAY, of Caister, Norfolk, seigneur of Gournay-en-Brie, la Ferte-en-Brie, and Gaillefontaine, founder of Lessingham Priory, Norfolk, son and heir. He married before 1091 AIDIEVE (or EDIVA) DE WARENNE, daughter of William de Warenne, lst Earl of Surrey, by Gundred, sister of Gerbod, Earl of Chester. Her maritagium included the manor of Mapledurham, co. Oxford. They had one son, Hugh, and one daughter, Gundred. He and his father witnessed the foundation charter of Holy Trinity Caen in 1082 by King William the Conqueror. In 1090, he stood by William Rufus against Duke Robert, and, on their reconciliation, his allegiance and castles in Normandy were transferred to Duke Robert. He and his mother confirmed all of his father's gifts to the Abbey of Bec. He accompanied Robert, Duke of Normandy, on a crusade in 1096, and was with Bohemond in the advance from Nice in Bythinia. GERARD DE GOURNAY was living in 1104, and is said to have died on a pilgrimage to Jerusalem.
Gerard married Edith (Ediva) DE WARENNE Heir of Mapledurham, daughter of Guillaume (William) DE WARENNE 1st Earl of Surrey and Gundred DE NORMANDIE, before 1091. (Edith (Ediva) DE WARENNE Heir of Mapledurham was born about 1076 in Mapledurham, Oxfordshire, England.)