Knight of Okehampton, Chulmeleigh, Musbury, Devon, of Sutton Courtenay, Berkshire, of Iwerne Coutenay, Dorset, of Eaddeson, Buckinghamshire.
Son and heir to Sir Robert de Courtenay and Mary de Vernon, daughter of William, the Earl of Devon.
Husband of Isabel de Vere, daughter of Hugh de Vere, Earl of Oxford and Hawise de Quincy. They had one son, Sir Hugh.
Isabel's maritagium included the manors of Hillesdon and Waverdon, Buckinghamshire. Sir John serviced in Gascony in 1248 and in Wales in 1257 and 1258.
Death year per The Visitations of the County of Devon
Son and heir to Sir Robert de Courtenay and Mary de Vernon, daughter of William, the Earl of Devon.
Husband of Isabel de Vere, daughter of Hugh de Vere, Earl of Oxford and Hawise de Quincy. They had one son, Sir Hugh.
Isabel's maritagium included the manors of Hillesdon and Waverdon, Buckinghamshire. Sir John serviced in Gascony in 1248 and in Wales in 1257 and 1258.
Death year per The Visitations of the County of Devon
Knight of Okehampton, Chulmeleigh, Musbury, Devon, of Sutton Courtenay, Berkshire, of Iwerne Coutenay, Dorset, of Eaddeson, Buckinghamshire.
Son and heir to Sir Robert de Courtenay and Mary de Vernon, daughter of William, the Earl of Devon.
Husband of Isabel de Vere, daughter of Hugh de Vere, Earl of Oxford and Hawise de Quincy. They had one son, Sir Hugh.
Isabel's maritagium included the manors of Hillesdon and Waverdon, Buckinghamshire. Sir John serviced in Gascony in 1248 and in Wales in 1257 and 1258.
Death year per The Visitations of the County of Devon
Son and heir to Sir Robert de Courtenay and Mary de Vernon, daughter of William, the Earl of Devon.
Husband of Isabel de Vere, daughter of Hugh de Vere, Earl of Oxford and Hawise de Quincy. They had one son, Sir Hugh.
Isabel's maritagium included the manors of Hillesdon and Waverdon, Buckinghamshire. Sir John serviced in Gascony in 1248 and in Wales in 1257 and 1258.
Death year per The Visitations of the County of Devon
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