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
Josceline Percy, 11th Earl of Northumberland couples in England. The title Earl of Northumberland was re-created in 1748 for his daughter's son Algernon Seymour, 7th Duke of Somerset (1684–1750), with special remainder to the latter's son-in-law Sir Hugh Smithson, 4th Baronet (1715–1786), later created Duke of Northumberland, who changed his surname to Percy and inherited the ancient Percy seat of Alnwick Castle. The 7th Duke of Somerset was also created Earl of Egremont in 1749, with special remainder to his nephew Sir Charles Wyndham, 4th Baronet (1710–1763), who inherited the other part of the Percy estates, namely Petworth House in Sussex and Egremont Castle in Cumbria.