aker ▁of ▁the ▁Cro at ian ▁Parliament ▁on ▁ 1 4 ▁October ▁ 2 0 1 6 ▁with ▁ 1 3 2 ▁M embers ▁of ▁Parliament ▁voting ▁in ▁favor , ▁ 1 ▁against ▁and ▁ 1 2 ▁ab st aining . ▁Having ▁taken ▁office ▁two ▁days ▁before ▁his ▁ 3 7 th ▁birth day , ▁Pet rov ▁became ▁the ▁young est ▁person ▁ever ▁to ▁hold ▁the ▁position ▁of ▁speaker . ▁As ▁per ▁a ▁post - e lection ▁agreement ▁between ▁Pet rov ' s ▁Bridge ▁of ▁Independent ▁List s ▁( M ost ) ▁party ▁and ▁the ▁Cro at ian ▁Democratic ▁Union ▁( HD Z ) ▁led ▁by ▁Prime ▁Minister ▁Andre j ▁Pl enk ović , ▁Pet rov ▁was ▁due ▁to ▁serve ▁as ▁Spe aker ▁for ▁a ▁ 2 - year ▁period ▁and ▁would ▁there after ▁have ▁been ▁replaced ▁by ▁a ▁Spe aker ▁from ▁the ▁HD Z , ▁pres umably ▁the ▁party ' s ▁general ▁secretary ▁and ▁former ▁Foreign ▁Minister ▁G ord an ▁J andro k ović . ▁Pet rov ▁res igned ▁from ▁office ▁on ▁ 4 ▁May ▁ 2 0 1 7 ▁amid st ▁a ▁government ▁crisis ▁which ▁began ▁on ▁ 2 7 ▁April ▁ 2 0 1 7 ▁when ▁Prime ▁Minister ▁Andre j ▁Pl enk ović ▁removed ▁three ▁government ▁minister s ▁supported ▁by ▁Pet rov ' s ▁Most ▁party ▁and ▁es cal ated ▁further ▁to ▁a ▁point ▁where ▁Pl enk ović ' s ▁Cro at ian ▁Democratic ▁Union ▁began ▁to ▁gather ▁sign atures ▁for ▁Pet rov ' s ▁removal ▁from ▁office ▁via ▁no