é ienne ▁(" P om pe ian ▁house "), ▁sometimes ▁called ▁the ▁Pal ais ▁pom p é ien ▁(" P om pe ian ▁palace ") ▁was ▁the ▁h ôtel ▁particulier ▁of ▁Prince ▁J ér ôme ▁Nap ol éon ▁in ▁Paris ▁in ▁the ▁style ▁of ▁the ▁Villa ▁of ▁Di om edes ▁in ▁Pom pe ii . ▁It ▁was ▁located ▁at ▁ 1 6 - 1 8 ▁Avenue ▁Mont a igne ▁from ▁ 1 8 6 0 ▁to ▁ 1 8 9 1 . ▁ ▁It ▁was ▁built ▁in ▁ 1 8 5 6 - 1 8 6 0 ▁on ▁the ▁former ▁site ▁of ▁the ▁Pav illon ▁des ▁Be aux - Ar ts ▁of ▁the ▁Ex position ▁Univers elle ▁of ▁ 1 8 5 5 . ▁As ▁president ▁of ▁the ▁Ex position , ▁J ér ôme ▁had ▁bought ▁the ▁land ▁for ▁it . ▁The ▁architect s ▁included ▁Jacques - Ign ace ▁H itt or ff , ▁August e ▁R oug é vin , ▁and ▁finally ▁Alfred - N icol as ▁Norm and . ▁Camil le - August e ▁Gast ine ▁created ▁the ▁decor ative ▁schemes ▁in ▁Pom pe ian ▁style . ▁Its ▁interior ▁paint ings ▁included ▁works ▁by ▁S éb ast ien ▁C ourn u ▁and ▁Jean - L éon ▁G ér ôme . ▁It ▁is ▁considered ▁a ▁good ▁example ▁of ▁Ne o - G rec ▁style . ▁ ▁When ▁J ér ôme ▁went ▁into ▁ex ile , ▁he ▁sold ▁it ▁to ▁invest ors , ▁who ▁opened ▁it ▁to ▁the ▁public ▁during ▁the ▁Ex position