Berkeley Castle (pronounced Barkley) (historically sometimes spelt Berkley Castle or Barkley Castle) is a castle in the town of Berkeley, Gloucestershire, UK (grid reference ST685989). The castle's origins date back to the 11th century and it has been designated by English Heritage as a grade I listed building.
The castle has remained within the Berkeley family since they reconstructed it in the 12th century, except for a period of royal ownership by the Tudors. It is traditionally believed to be the scene of the murder of King Edward II in 1327.
The first castle at Berkeley was a motte-and-bailey, built around 1067 by William FitzOsbern shortly after the Conquest. This was subsequently held by three generations of the first Berkeley family, all called Roger de Berkeley, and rebuilt by them in the first half of the 12th century. The last Roger de Berkeley was dispossessed in 1152 for withholding his allegiance from the House of Plantagenet during the conflict of The Anarchy, and the feudal barony of Berkeley was then granted to Robert Fitzharding, a wealthy burgess of Bristol and supporter of the Plantagenets. He was the founder of the Berkeley family which still holds the castle.