John, Count of Saint-PolJohn of Saint-Pol was Count of Saint-Pol between 1317 and 1344.He was the eldest son of Guy IV, Count of Saint-Pol and Marie of Brittany.He married in 1319 with Joanna, daughter of John I of Fiennes, and had 2 children: Guy V, Count of Saint-Pol, no issue; Mathilde, married Guy I, Count of Ligny.