Complex sentence: Duke of Turin, he married the princess Gundeberga, daughter of King Agilulf and his queen Theodelinda, he was, unlike his father-in-law, an Arian who did not accept Catholicism.
Split into simpler sentences: Duke of Turin, he married the princess Gundeberga, daughter of King Agilulf and his queen Theodelinda. He was, unlike his father-in-law, an Arian who did not accept Catholicism.