Arundel Castle is a restored medieval castle in Arundel, West Sussex, England. It was founded by Roger de Montgomery on Christmas Day 1067. Roger became the first to hold the earldom of Arundel by the graces of William the Conqueror. The castle was damaged in the English Civil War and then restored in the 18th and 19th centuries.
From the 11th century onward, the castle has served as a hereditary stately home and has been in the family of the Duke of Norfolk for over 400 years. It is still the principal seat of the Norfolk family. It is a Grade I listed building.