▁its ▁completion , ▁it ▁occupied ▁an ▁area ▁of ▁. ▁The ▁building ▁was ▁enorm ously ▁expensive , ▁cons uming ▁much ▁of ▁the ▁pap acy ' s ▁income ▁during ▁its ▁construction . ▁ ▁The ▁Pal ais ▁V ieux ▁was ▁constructed ▁by ▁the ▁architect ▁Pierre ▁Po isson ▁of ▁M ire po ix ▁at ▁the ▁instruction ▁of ▁Pope ▁Bened ict ▁XII . ▁The ▁aust ere ▁Bened ict ▁had ▁the ▁original ▁epis cop al ▁palace ▁raz ed ▁and ▁replaced ▁with ▁a ▁much ▁larger ▁building ▁cent red ▁on ▁a ▁clo ister , ▁heavily ▁fort ified ▁against ▁attack ers . ▁Its ▁four ▁wings ▁are ▁fl ank ed ▁with ▁high ▁to wers . ▁ ▁Under ▁Pop es ▁Clement ▁VI , ▁In noc ent ▁VI ▁and ▁Urban ▁V , ▁the ▁building ▁was ▁expanded ▁to ▁form ▁what ▁is ▁now ▁known ▁as ▁the ▁Pal ais ▁Ne uf . ▁An ▁architect , ▁Jean ▁de ▁Lou v res , ▁was ▁commission ed ▁by ▁Clement ▁VI ▁to ▁build ▁a ▁new ▁tower ▁and ▁ad jo ining ▁buildings , ▁including ▁a ▁ 5 2 ▁m ▁long ▁Grand ▁Chap el ▁to ▁serve ▁as ▁the ▁location ▁for ▁pap al ▁acts ▁of ▁worship . ▁Two ▁more ▁to wers ▁were ▁built ▁under ▁In noc ent ▁VI . ▁Urban ▁V ▁completed ▁the ▁main ▁cour ty ard ▁( known ▁as ▁the ▁Court ▁d ' H onneur ) ▁with ▁further ▁buildings ▁en clos ing ▁it . ▁The ▁interior ▁of ▁the ▁building ▁was ▁sum pt u ously ▁decor ated ▁with ▁fres cos , ▁t apest ries , ▁paint ings , ▁sculpt ures ▁and ▁wooden ▁ce il ings