. A . ▁G uns ▁members ▁Category : R ock ▁bass ▁guitar ists ▁Category : 2 0 th - century ▁American ▁mus icians ▁Category : 2 0 th - century ▁British ▁mus icians ▁Category : 2 0 th - century ▁bass ▁guitar ists <0x0A> </s> ▁Lé on ▁L év y ▁Brun sw ick ▁( 2 0 ▁April ▁ 1 8 0 5 , ▁in ▁Paris ▁– ▁ 2 9 ▁July ▁ 1 8 5 9 , ▁in ▁Le ▁Hav re ) ▁was ▁a ▁French ▁play w right . ▁He ▁started ▁as ▁a ▁journalist ▁before ▁turning ▁to ▁the ater . ▁He ▁is ▁the ▁author ▁of ▁many ▁com ed ies ▁with ▁Jean - Fran çois ▁Bay ard , ▁Louis - É mile ▁V ander b urch , ▁and ▁Arthur ▁de ▁Beau plan ▁such ▁as ▁B occ ac cio , ▁or ▁the ▁Prince ▁of ▁Pal mer o ▁by ▁Franz ▁von ▁Supp é . ▁ ▁But ▁it ▁is ▁with ▁Ad ol phe ▁de ▁Le u ven ▁that ▁he ▁is ▁known ▁for ▁his ▁greatest ▁success es , ▁not ably ▁book lets ▁of ▁com ic ▁oper as ▁by ▁Ad ol phe ▁Adam ▁( Le ▁Br asse ur ▁de ▁Pr eston , ▁Le ▁Post illon ▁de ▁L on j ume au , ▁Le ▁Ro i ▁d ' Y vet ot ). ▁He ▁has ▁also ▁published ▁under ▁the ▁pseud onym ▁of ▁Leo ▁L h érie . ▁ ▁Selected ▁works ▁▁ ▁With ▁Ad ol phe ▁de ▁Le u ven : ▁Le ▁mari age ▁au ▁tamb our . ▁Com édie ▁en ▁trois ▁act