▁served ▁as ▁an ▁ancest ral ▁bur ial ▁place ▁of ▁the ▁Ol gov ichi ▁family . ▁ ▁The ▁monaster y ▁suffered ▁a ▁severe ▁fire ▁in ▁ 1 7 3 4 , ▁and ▁was ▁re construct ed ▁by ▁the ▁Ukrain ian ▁architect ▁Ivan ▁H ry hor ov ych - Bar sky i ▁during ▁ 1 7 5 0 – 1 7 6 0 . ▁ ▁His ▁work ▁also ▁included ▁the ▁addition ▁of ▁m ason ry ▁walls ▁en clos ing ▁the ▁monaster y ' s ▁cour ty ard , ▁a ▁pictures que ▁corner ▁tower ▁and ▁gate , ▁and ▁other ▁mon astic ▁buildings . ▁ ▁In ▁ 1 7 8 7 , ▁St . ▁Cy ril ' s ▁Mon aster y ▁was ▁closed ▁by ▁the ▁Ts ar ist ▁Government ▁and ▁its ▁living ▁qu arters ▁were ▁converted ▁into ▁a ▁hospital ▁( St . ▁Cy ril ' s ▁Hospital ) ▁and ▁were ▁later ▁transformed ▁into ▁an ▁ins ane ▁as yl um , ▁which ▁last ed ▁until ▁the ▁mid - late ▁ 2 0 th ▁century ▁in ▁Soviet ▁Ukraine . ▁ ▁On ▁May ▁ 8 , ▁ 1 9 2 9 , ▁the ▁Council ▁of ▁Comm is ars ▁of ▁the ▁Ukrain ian ▁SS R ▁proc laimed ▁St . ▁Cy ril ' s ▁Mon aster y ▁as ▁a ▁monument ▁of ▁historic ▁significance ▁and ▁ordered ▁that ▁a ▁" pres ervation ▁district " ▁be ▁established . ▁However , ▁at ▁the ▁same ▁time , ▁the ▁monaster y ' s ▁church ▁was ▁closed ▁to ▁worship ▁and ▁it ▁was ▁prepared ▁for ▁transformation ▁into ▁a ▁museum .