John III, Count of Soissons
John III, son of John II, Count of Soissons, and Marie de Chimay. Count of Soissons and Seigneur of Chimay. John inherited the countship of Soissons upon his father’s death in 1272.
John married Marguerite de Montfort, daughter of Amaury, Count of Montfort, and his wife Beatrix de Viennois. John and Marguerite had five children:
John was succeeded as Count of Soissons by his son and namesake upon the former’s death.