Battle of Dettingen
He was born 1718 in Devon, England the second son of Sir John Prideaux, 6th Baronet, of Netherton Hall, near Honiton (see Prideaux Baronets). On 17 July 1739 he was appointed ensign of the 3rd Foot-Guards; he was adjutant of his battalion at the Battle of Dettingen (27 July 1743) and become lieutenant colonel of his regiment on 24 February 1748.