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1198–1230: Robert IV - son of Walram I; from 1230–1240: Knight of the Teutonic Order
In 1260 he married Beatrice de Montfort, Countess of Montfort-l'Amaury daughter of Jean I de Montfort and Jeanne, Dame de Chateaudun, and granddaughter of Amaury de Montfort.
She was the daughter of Robert IV, Count of Dreux, and Beatrice, Countess of Montfort.