ate ▁Car r ère , ▁fer ry ing ▁L annes , ▁Mur at , ▁Mar mont ▁and ▁Par ce val - Gr and ma ison ▁to ▁France , ▁and ▁sail ing ▁with ▁the ▁Mu ir on ▁which ▁carried ▁fer ry ing ▁Bon ap arte , ▁G ant he a ume , ▁Ber th ier , ▁André os si , ▁Mon ge , ▁Ber th ol let , ▁Den on , ▁Lav alette ▁et ▁Bou ri enne . ▁ ▁Dum ano ir ▁was ▁promoted ▁to ▁ ▁on ▁ 2 1 ▁November ▁ 1 7 9 9 , ▁command ing ▁a ▁division ▁of ▁the ▁squad ron ▁of ▁Br est . ▁During ▁the ▁Battle ▁of ▁Al ge cir as ▁Bay , ▁he ▁was ▁task ed ▁with ▁commission ing ▁activities ▁in ▁Cad ix , ▁and ▁after ▁the ▁battle , ▁he ▁was ▁repr im and ed ▁for ▁failing ▁to ▁rein force ▁L inois . ▁ ▁In ▁ 1 8 0 5 , ▁he ▁was ▁in ▁command ▁of ▁a ▁division ▁in ▁the ▁French ▁fleet ▁commanded ▁by ▁Admir al ▁Pierre - Char les ▁Vill ene uve . ▁He ▁took ▁part ▁in ▁the ▁Battle ▁of ▁T raf al gar ▁on ▁ 2 1 ▁October ▁ 1 8 0 5 , ▁flying ▁his ▁flag ▁on ▁the ▁Form id able ▁and ▁command ing ▁the ▁six - ship ▁v angu ard ▁of ▁the ▁French ▁fleet ; ▁cut ▁off ▁from ▁most ▁of ▁the ▁fighting , ▁he ▁gave ▁the ▁signal ▁for ▁his ▁ships ▁to ▁fle e ▁the ▁battle , ▁and ▁four ▁of ▁them ▁did ▁( although