Question: What is the date of death of Edmund Of Langley, 1St Duke Of York's father?
Sentence (from "Edward III of England"): Following some initial setbacks, this first phase of the war went exceptionally well for England; victories at Crécy and Poitiers led to the highly favourable Treaty of Brétigny, in which England made territorial gains, and Edward renounced his claim to the French throne.
Relevant evidence: No