Alnwick Castle in the period 1798–1814. The Abbot's Tower houses the Regimental Museum of the Royal Northumberland Fusiliers. An increase in public interest in the castle was generated by its use as a stand-in for the exterior and interior of Hogwarts in the "Harry Potter" films. Its appearance in the films has helped shape the public imagination regarding what castles should look like. Its condition contrasts with the vast majority of castles in the country, which are ruinous and unfit for habitation. The River Aln flows past the north side of the Castle. There is a deep ravine to the south and
Duke of Northumberland son of the fifth Duke, was a soldier. Lord Algernon Percy, second son of the sixth Duke, was a politician. Lord Eustace Percy, seventh son of the seventh Duke, was a politician who was raised to the peerage as Baron Percy of Newcastle in 1953. Jane Percy, Duchess of Northumberland, wife of the twelfth Duke, is Lord-Lieutenant of Northumberland since 2009. See also Earl of Beverley for younger sons of the first Earl of Beverley. <section end=members/> <section begin=residences/> The seat of the Dukes of Northumberland is Alnwick Castle, which is located in Alnwick, Northumberland. The family's London residence is