▁strong ▁man ▁by ▁royal ▁dec ree , ▁was ▁Bog ol jub ▁Je v ti ć ' s ▁brother - in - law , ▁the ▁closest ▁advis er ▁to ▁the ▁head ▁of ▁State . ▁ ▁Ž iv k ović ▁held ▁the ▁office ▁as ▁a ▁member ▁of ▁the ▁Y ug oslav ▁Rad ical ▁Pe as ants ' ▁Dem ocracy ▁( J R SD ), ▁which ▁was ▁soon ▁the ▁only ▁legal ▁party ▁in ▁Y ug oslav ia , ▁due ▁to ▁his ▁elect oral ▁re forms . ▁He ▁res igned ▁as ▁prime ▁minister ▁in ▁ 1 9 3 2 , ▁and ▁shortly ▁there after ▁founded ▁the ▁Y ug oslav ▁National ▁Party , ▁becoming ▁its ▁president ▁in ▁ 1 9 3 6 . ▁ ▁Meanwhile , ▁in ▁ 1 9 3 4 , ▁Alexander ▁I ▁had ▁been ▁assass in ated . ▁His ▁cousin ▁Pav le ▁K ara đ or đ e vić ▁took ▁office ▁as ▁reg ent ▁for ▁the ▁ 1 1 - year - old ▁Pet ar ▁II . ▁Upon ▁Pav le ' s ▁ 1 9 4 1 ▁signing ▁of ▁the ▁Tri part ite ▁P act , ▁Ž iv k ović ▁left ▁Y ug oslav ia ▁ahead ▁of ▁the ▁Naz i ▁invasion ▁( see ▁B alk ans ▁Camp aign ). ▁He ▁became ▁part ▁of ▁the ▁Y ug oslav ▁government ▁in ▁ex ile . ▁ ▁In ▁ 1 9 4 6 ▁he ▁was ▁tried ▁in ▁absent ia ▁in ▁Federal ▁People ' s ▁Republic ▁of ▁Y ug oslav ia ▁and ▁sent enced ▁to ▁death ▁by ▁the ▁commun ist