julius caesars office was also called dictator in perpetuum and he died
he centralised the bureaucracy of the republic and was eventually proclaimed  dictator in perpetuity   giving him additional authority
dictator perpetuo lrb english   dictator in perpetuity  rrb  also called dictator in perpetuum  was the office held by julius caesar from 26 january or 15 february of the year 44 bce until his death on 15 march