5 ▁by ▁ 3 2 , 4 ▁m ) ▁of ▁the ▁c athedral ▁( the ▁second ▁largest ▁media eval ▁church ▁on ▁the ▁territory ▁of ▁present - day ▁Ukraine , ▁smaller ▁only ▁to ▁St . ▁Soph ia ▁C athedral ▁in ▁K iev ), ▁suggests ▁that ▁ancient ▁Hal ych ▁was ▁the ▁seat ▁of ▁a ▁dioc ese . ▁Most ▁likely ▁the ▁c athedral ▁was ▁built ▁in ▁ 1 1 5 7 ▁and ▁destroyed ▁in ▁ 1 2 4 1 ▁by ▁h ord es ▁of ▁B aty i ▁Khan , ▁then ▁re built ▁again ▁and ▁last ▁time ▁mentioned ▁in ▁ 1 5 7 6 . ▁ ▁It ▁is ▁believed ▁that ▁the ▁early ▁Hal ych ian ▁architect ural ▁style , ▁thoroughly ▁per me ated ▁with ▁Roman es que ▁influ ences ▁from ▁the ▁West , ▁had ▁been ▁transferred ▁further ▁north - east . ▁The ▁build ers ▁of ▁tem ples ▁in ▁Hal ych ▁are ▁believed ▁to ▁have ▁also ▁been ▁responsible ▁for ▁the ▁ext ant ▁Per es lav l ▁C athedral ▁and ▁Church ▁of ▁Inter cess ion ▁upon ▁N er l . ▁The ▁found ations ▁of ▁the ▁Ass umption ▁C athedral ▁( 1 1 5 7 ) ▁are ▁still ▁to ▁be ▁seen . ▁The ▁only ▁surv iving ▁medieval ▁church ▁is ▁that ▁of ▁Saint ▁P ant ale on , ▁originally ▁constructed ▁at ▁the ▁turn ▁of ▁the ▁ 1 2 th ▁and ▁ 1 3 th ▁centuries , ▁but ▁significantly ▁re built ▁in ▁the ▁ 1 7 th ▁century ▁and ▁controvers ial ly ▁re construct ed ▁in ▁the ▁ 1 9 9 0