John of Flanders
…John of Flanders (c. 1250 – 14 October 1292), also known as John of Dampierre, was the third son of the Count of Flanders and Namur Guy of Dampierre from his first marriage with Matilda of Béthune, and brother of Robert of Béthune. He is not to be confused with his half brother John I, Marquis of…