▁ 1 7 1 9 ▁and ▁was ▁put ▁in ▁command ▁of ▁a ▁regiment ▁in ▁ 1 7 2 3 . ▁His ▁father ' s ▁dismiss al ▁in ▁ 1 7 2 8 ▁gained ▁Guy ▁Michel ▁the ▁titles ▁of ▁du ke ▁of ▁Quint in ▁and ▁of ▁Dur fort ▁- ▁in ▁the ▁same ▁year , ▁on ▁ 1 3 ▁July , ▁he ▁married ▁É lis abeth - Ad é la ï de ▁de ▁Po it iers ▁de ▁R iz ▁( d ied ▁ 1 7 7 8 ), ▁only ▁daughter ▁of ▁Ferdinand - Jose ph ▁de ▁Po it iers ▁de ▁R ye ▁d ' Ang l ure , ▁known ▁as ▁the ▁count ▁of ▁Po it iers , ▁and ▁of ▁Marie - G ene vi ève - G er tr ude ▁de ▁Bour bon - Mal ause . ▁The ▁couple ' s ▁only ▁child ▁was ▁Marie - G ene vi ève ▁( 3 ▁February ▁ 1 7 3 4 / 3 5 – 1 0 ▁December ▁ 1 7 6 2 , ▁Paris ) ▁- ▁in ▁ 1 7 5 1 ▁she ▁married ▁Jean ▁Bret agne ▁Charles ▁de ▁La ▁Tr ém o ille , ▁du ke ▁of ▁Th ou ars . ▁ ▁In ▁ 1 7 3 3 ▁Guy ▁Michel ▁inherited ▁the ▁du k edom ▁and ▁château ▁of ▁Rand an ▁ ▁from ▁his ▁a unt ▁Gene vi ève - Marie ▁de ▁Dur fort , ▁duch ess ▁of ▁Lau z un ▁in ▁ 1 7 3 3 . ▁He ▁served ▁in ▁Italy ▁in ▁ 1 7 3