Complex sentence: He became ruler in 530 after deposing his cousin Hilderic, who had angered the Vandal nobility by converting to Catholicism, most of the Vandals at this time being fiercely devoted to Arian Christianity.
Split into simpler sentences: He became ruler in 530 after deposing his cousin Hilderic, who had angered the Vandal nobility by converting to Catholicism. Most of the Vandals at this time being fiercely devoted to Arian Christianity.