The title of Earl of Northumberland has been created several times in the Peerage of England and of Great Britain, succeeding the title Earl of Northumbria. Its most famous holders are the House of Pe
17th-century Percy Window in Petworth House, Sussex, displaying in stained glass 9 heraldic escutcheons of quartered arms of 1st, 3rd, 4th, 5th, 6th, father of 7th & 8th, 7th, 8th & 9th Percy Earls of Northumberland, each impaling the quartered arms of his wife.
John Vanderbank Algernon Seymour, Earl of Hertford, Later 7th Duke of Somerset 485111 National Trust