Question: Did the first Duke of Valentinois play a key role in the Hundred Years' War?, Answer:No, Description of Hundred Years' War: Series of conflicts and wars between England and France during the 14th and 15th-century, Fact1: The Hundred Years' War was a conflict between England and France from 1337-1453, Fact2: Cesare Borgia, the son of Pope Alexander VI, was the first Duke of Valentinois., Fact3: Cesare Borgia was born in 1475.
Step1: When did the Hundred Years' War end?, Step2: Who was the first Duke of Valentinois?, Step3: When was #2 born?, Step4: Is #3 before #1?, Wikipedia page for step 1: Hundred Years' War, Wikipedia page for step 2: Duke of Valentinois, Wikipedia page for step 3: Casare Borgia, Wikipedia page for step 4: , not_definitive_answer: False, incorrect_answer: False