William de Courcy was an Anglo-Norman nobleman and baron.
[1] Through his mother, William inherited the barony of Stogursey in Somerset, as his mother was the sole heir of William de Falaise, the lord of Stogursey in Domesday Book.
[2] William and Emma were also the parents of two other sons: Richard and Robert.
[1] William, along with his brother Robert, confirmed the gift of his father of the advowson of the church of Nuneham Courtenay in Oxfordshire to Abingdon Abbey.
[5] But Marjorie Chibnall thinks this Robert is a cousin, from the Norman branch.