Complex sentence: He was elected a High Captain of Upper Hungary in 1445 for his part in the making of a Polish-Hungarian truce after the death of Wladyslaw and he kept this title after the office itself abolished in the next year.
Split into simpler sentences: He was elected a High Captain of Upper Hungary in 1445 for his part in the making of a Polish-Hungarian truce after the death of Wladyslaw. He kept this title after the office itself abolished in the next year.