Career
He was co-ruler of Opava and Głubczyce from his father"s death (between 1445 and 1447) and his own death. He was also Lord of Fulnek. John I died unmarried and childless in 1454.
He was co-ruler of Opava and Głubczyce from his father"s death (between 1445 and 1447) and his own death. He was also Lord of Fulnek. John I died unmarried and childless in 1454.