 His older brothers were George Keppel, 3rd Earl of Albemarle, who had succeeded their father as earl, Augustus Keppel, 1st Viscount Keppel, an admiral, raised to the peerage in his own right and the politician and military commander Hon.William Keppel.He entered Westminster School in 1743, and matriculated at Christ Church, Oxford, on 26 June 1747, graduating B.A.