▁in ▁ 1 2 4 1 , ▁when ▁the ▁famous ▁King ▁D any lo ▁was ▁its ▁r uler . ▁There after ▁the ▁town ▁stead ily ▁decl ined , ▁eventually ▁c eding ▁supre m acy ▁to ▁the ▁newly ▁founded ▁L viv . ▁The ▁exc av ations ▁of ▁ 1 9 3 3 – 4 2 ▁( J ar os law ▁Pas tern ak ), ▁ 1 9 5 1 – 5 2 ▁( Kar ger ▁M . K ., ▁A ul ikh ▁V .), ▁and ▁ 1 9 5 5 ▁un cover ed ▁remains ▁of ▁houses , ▁work sh ops , ▁fort ifications , ▁and ▁ten ▁churches ▁built ▁of ▁white ▁stone . ▁Pas tern ak ' s ▁exc av ations ▁established ▁that ▁ancient ▁Hal ych ▁origin ated ▁on ▁the ▁spot ▁of ▁today ' s ▁village ▁K ry los ▁( located ▁ 5   km ▁south ▁of ▁modern ▁Hal ych ) ▁as ▁early ▁as ▁the ▁ 1 0 th ▁century . ▁In ▁ 1 9 3 6 ▁Pas tern ak ▁also ▁discovered ▁remains ▁of ▁an ▁ 1 1 th ▁to ▁ 1 2 th ▁century ▁three - ap se ▁c athedral ▁with ▁bur ial ▁tomb ▁of ▁Prince ▁Y ar oslav ▁O sm om ys l ▁in ▁it . ▁The ▁c athedral ▁is ▁as cribed ▁to ▁the ▁C athedral ▁of ▁the ▁D orm ition ▁previously ▁known ▁only ▁from ▁Chron icles , ▁known ▁to ▁have ▁been ▁a ▁sep ul ch re ▁of ▁the ▁earliest ▁Hal ych ian ▁princes . ▁The ▁she er ▁size ▁( 3 7 ,