House St John of Basing
- Coat of Arms
House St John of Basing
Lords of Old Basing and Halnaker
Constables of Portchester Castle
Barons St John of Basing
Adopted the name and arms from House of St John in first half of 13th century
- Cadet Branches
House St John of Bletso
Lords of Bletsoe and Faumont
Barons St John of Bletso
Earls of Bolinbroke
Issued from William, 2nd son of Robert St John, Lord of Basing and younger brother of John St John, Seneschal of Gascony
- Personal Arms