The Duke of Berwick is a title in the peerage of the United Kingdom, originally created in 1707. The title was first held by James FitzJames, the illegitimate son of King James II of England. The Duke of Berwick has a rich history, often associated with military service and political influence in both England and France. The title has been passed down through generations, with several notable holders. The current Duke of Berwick, as of 2023, is Henry FitzJames, who is involved in various charitable activities and maintains the family's historical legacy. The dukedom is linked to the family's ancestral seat, Castle of Berwick.