Augustus Berkeley, 4th Earl of Berkeley Augustus Berkeley, 4th Earl of Berkeley Lieutenant-Colonel Augustus Berkeley, 4th Earl of Berkeley, KT (18 February 1715 – 9 January 1755) was the son of Vice-Admiral James Berkeley, 3rd Earl of Berkeley, and the former Lady Louisa Lennox. He was made an ensign in the 1st Regiment of Foot Guards in November 1734, and succeeded his father on 17 August 1736 as 4th Earl of Berkeley, 12th Baron Berkeley and 4th Viscount Dursley. In 1737, he was created Lord Lieutenant of Gloucestershire and Constable of St. Briavel's Castle, offices which he held until his death, and was made lieutenant-colonel of
Kenilworth Castle of the Midlands, in an area that held several nobles who still supported Edward and were believed to be trying to rescue him. Henry's loyalty was also coming under question. In due course, Isabella and Mortimer had Edward moved by night to Berkeley Castle, where he died shortly afterwards. Isabella continued to use Kenilworth as a royal castle until her fall from power in 1330. Henry of Grosmont, the Duke of Lancaster, inherited the castle from his father in 1345 and remodelled the great hall with a grander interior and roof. On his death Blanche of Lancaster inherited the castle.