House St John of Bletso

Coat of Arms
House St John of Bletso
Lords of Bletsoe and Faumont
Simple (paternal) arms
House St John of Bletso
Lords of Bletsoe and Faumont
Barons St John of Bletso
Earls of Bolinbroke

Cadet Branches
House St John of Lydiard
Lords and Baronets of Lydiard Tregoze
Barons St John of Battersea
Barons St John of Lydiard Tregoze
Viscounts St John
Viscounts Bolinbroke
Issued from Oliver, 2nd son of Oliver St John, Lord of Bletsoe
House St John of Cayshoe
Lords of Cayshoe (Keysoe)
Issued from Alexander, younger son of John St John, Lord of Bletsoe
Also known as Sention or Sension
American branch
House St John of Longthorpe
Baronets of Longthorpe
Issued from Thomas, 3rd son of Oliver St John, 1st Baron St John of Bletso
House St John of Woodford
Baronets of Woodford
Issued from Rowland, 4th son of Oliver St John, 3rd Baron St John of Bletso
Barons St John of Bletso from 8th Baron onwards and as such lead the undifferentiated arms of the family

Personal Arms
Oliver St John
1st Baron Tregoz
1st Viscount Grandison
2nd son of Nicholas St John, Lord of Lydiard Tregoze
Henry St John
4th Baronet of Lydiard Tregoze
1st Baron St John of Battersea
1st Viscount St John
Peter St John
9th Baron Dechmont
9th Viscount Kirkwall
9th Earl of Orkney
Great grandson of George St John, 3rd Viscount Bolinbroke by Ferdinand St John his 4th son from 2nd marriage