Augustus Berkeley, 4th Earl of Berkeley 1755 and was buried on 17 January 1755 at Berkeley, Gloucestershire. 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
Baron Berkeley that the barony by writ was deemed, extraordinarily, to be in effect a feudal barony (or barony by tenure), dependent on the tenure of Berkeley Castle. Thus when William Berkeley, 1st Marquess of Berkeley, 2nd Baron Berkeley (1426–1492), "William the Waste-All", alienated Berkeley Castle to the king, he effectively disinherited his younger brother from the barony by writ. The heir apparent is his son the Hon. Thomas FitzHardinge Gueterbock (b. 1969) The Earldom of Berkeley, together with the Viscountcy Dursley, was separated from the barony in 1882, but the accession was not fully established. In 1942 both titles became extinct