Walter IV, Count of Brienne

In 1235 John gave him the County of Jaffa and Ascalon,[a][3] that and arranged a marriage with Maria (before March, 1215 – ca.

He was commander of the Crusader army that marched against the forces of as-Salih Ayyub at the Battle of La Forbie in 1244.

Against the advice of al-Mansur of Homs, his Syrian ally, Walter insisted on taking the offensive, rather than fortifying his camp and awaiting the retreat of the Khwarezmians.

Walter was captured,[4] tortured before the walls of Jaffa,[5] and ultimately turned over to the Egyptians after the Khwarezmian defeat before Homs in 1246.

His younger son Hugh of Brienne settled in Southern Italy and became a partisan of Charles of Anjou, who returned to him the family's county of Lecce.