Earl of Northumberland
Noble title
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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 Percy, who were the most powerful noble family in... Wikipedia
First holder: Henry Percy
Peerage: Peerage of England (1st to 4th creations); Peerage of Great Britain (5th creation)
Present holder: Ralph Percy, 12th Duke of Northumberland
Seat(s): Alnwick Castle; Syon House