Anne de Mortimer, Countess of Cambridge was the grandmother of the last of the Plantagenet dynasty whose defeat at Bosworth Field marked the end of what in England?
Anne de Mortimer Anne de Mortimer, Countess of Cambridge (27 December 1390 – c. 22 September 1411), was the mother of Richard Plantagenet, 3rd Duke of York, and the grandmother of King Edward IV and King Richard III.
Marlborough Castle Marlborough Castle, locally known and recorded in historical documents as "The Mount", was an 11th-century royal castle located in the civil parish of Marlborough, a market town in the English county of Wiltshire, on the Old Bath Road, the old main road from London to Bath (grid reference [ SU18376866] ). The barrow on which the fortification was built, perhaps the "barrow of Maerla" seems to be a prehistoric earthwork which formed the motte of the Norman Marlborough Castle. It survives as a tree-covered mound at the centre of Marlborough College.