Serbian king from 1233 to 1242 and Saint. Second son of Stefan First-Crowned and son-in-law of Bulgarian tzar Ivan Asen II. He overthrew his older brother, king Radoslav and succeeded with help from his father-in-law. After death of his father-in-law, during Tatar invasion in Middle Europe he was overthrown by his younger brother Uros, who gave him to rule Zeta.