▁of ▁War ▁for ▁a ▁few ▁days ▁in ▁April ▁ 1 8 4 6 . ▁He ▁became ▁for ▁a ▁fourth ▁time ▁Minister ▁of ▁the ▁Navy ▁between ▁ 2 ▁June ▁ 1 8 5 1 ▁and ▁ 3 ▁May ▁ 1 8 5 2 ▁under ▁Juan ▁Bra vo ▁Mur illo . ▁ ▁Finally , ▁he ▁became ▁Prime ▁Minister ▁himself ▁on ▁ 1 5 ▁October ▁ 1 8 5 7 . ▁His ▁cabinet ▁held ▁out ▁until ▁ 1 4 ▁January ▁ 1 8 5 8 , ▁in ▁which ▁he ▁also ▁held ▁the ▁posts ▁of ▁Minister ▁of ▁the ▁Inter ior ▁and ▁Minister ▁of ▁War . ▁ ▁On ▁ 2 2 ▁February ▁ 1 8 6 2 ▁he ▁received ▁the ▁title ▁of ▁Mar qu és ▁de ▁N er vi ón , ▁and ▁on ▁ 1 3 ▁February ▁ 1 3 , ▁ 1 8 5 6 ▁Captain ▁general ▁of ▁the ▁Navy . ▁ ▁But ▁before ▁that , ▁he ▁had ▁served ▁a ▁fifth ▁term ▁as ▁Minister ▁of ▁the ▁Navy ▁between ▁ 1 6 ▁September ▁ 1 8 6 4 ▁and ▁ 2 1 ▁Jun y ▁ 1 8 6 5 ▁under ▁Ram ón ▁María ▁Nar vá ez . ▁ ▁S ources ▁▁▁ ▁Biography ▁( Span ish ) ▁ ▁" Don ▁Francisco ▁Ar mer o ", ▁in : ▁El ▁Museo ▁Universal , ▁S . ▁ 2 5 1 – 2 5 2 ▁( PDF ; ▁ 7 9 2   k B ) ▁ ▁Cab in ets ▁under ▁Isabel la ▁II . ▁( 1 8 3 3 – 1 8