ジョージ・グレンヴィル
Grenville was the second son of Prime Minister George Grenville and Elizabeth Wyndham, daughter of Sir William Wyndham, 3rd Baronet. George Nugent-Temple-Grenville, 1st Marquess of Buckingham, was his elder brother and William Grenville, 1st Baron Grenville, his younger brother. He was educated at Eton.