Lieutenant-Colonel John James Waldegrave, 6th Earl Waldegrave (31 July 1785 โ 1835) was a British peer and soldier. Waldegrave was the second son of the 4th Earl Waldegrave and was educated at Eton. Upon his father's death in 1789, Waldegrave's elder brother George inherited the former's titles, but Waldegrave soon inherited them (aged eight), when his brother drowned in the Thames five years later. In 1797 he inherited from Horace Walpole his famous residence, Strawberry Hill House, in Twickenham. Waldegrave later transferred to the 98th Foot.