Hugh the Great
From 920 to 922, Charles the Simple was in trouble. Although he signed the Treaty of Bonn with king Henry the Fowler of East Francia on 7 November 921, he had to fight on two fronts: one against Duke Giselbert of Lotharingia and the other against Hugh the Great, irritated by the treatment of his mother-in-law. Defeated, in June 922 Charles the Simple took refuge in Lotharingia, and the nobles of the West Francia declared him deposed from the throne, choosing as the new King Robert, Count of Paris, brother of the late King Odo and father of Hugh the Great.