Information: - Baldwin IV (1161 16 March 1185), called "the Leper", reigned as King of Jerusalem from 1174 until his death. He was the son of Amalric I of Jerusalem and his first wife, Agnes of Courtenay. - The King of Jerusalem was the supreme ruler of the Kingdom of Jerusalem, the Crusader state founded by Christian princes in 1099 when the First Crusade took the city. - Agnes of Courtenay ( c. 1136 -- c. 1184 ) was the daughter of Joscelin II of Courtenay by his wife Beatrice ( widow of William , Lord of Saone ) , and the mother of king Baldwin IV of Jerusalem and queen Sibylla of Jerusalem . What is the relationship between 'agnes of courtenay' and 'amalric i of jerusalem'?
spouse