Charles the Simple

Charles III (17 September 879 – 7 October 929), called the Simple or the Straightforward (from the Latin Carolus Simplex), was the King of West Francia from 898 until 922 and the King of Lotharingia from 911 until 923. He was a member of the Carolingian dynasty. Among his accomplishments was the defeat of Rollo the Walker at Chartres in 911, however he realized that he could not keep Rollo out indefinitely and made a treaty with him, establishing the Duchy of Normandy.

The nobles' discontent with Charles' rule led to his overthrow in 923. He spent the rest of his life as a prisoner.

Charles III in "The Old Grind"
Charles the Simple, King of Francia, won a great victory at the Siege of Chartres against Rollo's raiders, despite the presence of the giantess Fenia on the opposing side.