Cadet branch of the House of Montagu
- Coat of Arms
House of Montagu
Lords of Boughton, Hanging Houghton and Hemington
Simple arms
House of Montagu
Barons Montagu of Boughton
Viscounts Monthermer
Marquesses of Monthermer
Earls and Dukes of Montagu
- Cadet Branches
House Montagu of Kimbolton
Baron Montagu of Kimbolton
Viscounts Mandeville
Earls and Dukes of Manchester
Issued from Henry, 4th son of Edward Montagu of Boughton and younger brother of Edward, 1st Baron Montagu of Boughton
House Montagu of St Neots
Barons Montagu of St Neots
Viscount Hinchingbrooke
Earls of Sandwich
Issued from Sidney, 7th son of Edward Montagu of Boughton and younger brother of Edward, 1st Baron Montagu of Boughton and Henry, 1st Earl of Manchester
House Montagu of Halifax
Barons Halifax
Viscount Sunbury
Earls of Halifax
Issued from George Montagu, son of Henry Montagu, 1st Earl of Manchester from his 3rd marriage
House of Wortley-Montagu
Lords of Wortley and Wharncliffe
Issued from Sidney, 2nd son of Edward Montagu, 1st Earl of Sandwich
Assumed additional surname and arms of House of Wortley
House of Brudenell-Monatgu
Baronets of Deene
Barons Brudenell
Barons Montagu of Boughton
Earls of Cardigan
Marquesses of Montermer
Matrilineal branch issued from Mary Montagu, daughter of John Montagu, 2nd Duke of Montagu
- Personl Arms
John Montagu
Viscount Monthermer
Marquess of Monthermer
2nd Duke of Montagu
1709-1749