▁Family ▁He ▁died ▁in ▁ 1 7 7 9 ▁at ▁the ▁age ▁ 8 2 ▁at ▁R ut land ▁House , ▁Kn ights bridge , ▁London ▁and ▁was ▁buried ▁in ▁the ▁Bel voir ▁Castle ▁ma us ole um . ▁ ▁In ▁ 1 7 1 7 ▁he ▁had ▁married ▁Br idget ▁S utton , ▁the ▁ 1 7 - year - old ▁he ir ess ▁of ▁Robert ▁S utton , ▁ 2 nd ▁Baron ▁Lex inton . ▁They ▁had ▁eleven ▁children , ▁most ▁of ▁whom ▁died ▁young : ▁Lady ▁Catherine ▁Rach el ▁Mann ers ▁( b . ▁ 1 7 1 8 ), ▁died ▁young ▁Lady ▁Caroline ▁Mann ers ▁( b . ▁spring ▁ 1 7 1 9 ), ▁died ▁young ▁Lady ▁Frances ▁and ▁Lady ▁Br idget ▁Mann ers ▁( d . ▁ 3 0 ▁December ▁ 1 7 1 9 ), ▁tw ins ▁died ▁young ▁John ▁Mann ers , ▁Mar qu ess ▁of ▁Gran by ▁( 1 7 2 1 – 1 7 7 0 ) ▁Lord ▁Robert ▁Mann ers - S utton ▁( 1 7 2 2 – 1 7 6 2 ) ▁Lord ▁George ▁Mann ers - S utton ▁( 1 7 2 3 – 1 7 8 3 ) ▁Lord ▁William ▁Mann ers ▁( 2 9 ▁July ▁ 1 7 2 4 ▁– ▁ 1 1 ▁March ▁ 1 7 3 0 ), ▁died ▁young ▁Lady ▁Leon ora ▁Mann ers ▁( d . ▁June ▁ 1 7 4 0 ), ▁died ▁young ▁Lady ▁Frances ▁Mann ers ▁( c .