Battle of Wakefield castle on 30 December. His reasons for doing so have been variously ascribed to deception by the Lancastrian armies, or treachery by some nobles and Lancastrian officers who York thought were his allies, or simple rashness or miscalculation by York. The Duke of York was killed and his army was destroyed, many of the prominent Yorkist leaders and their family members died in the battle or were captured and executed. King Henry VI ascended the throne in 1422, when he was only nine months old. He grew up to be an ineffective king, and prone to spells of mental illness.
English claims to the French throne Edward III, the nephew of the deceased king and thus the nearest adult male relative, based his claim on the theory that a woman could transmit a right of inheritance to her son. This claim was rejected by French jurists however, under the principle "Nemo plus juris ad alium transfere potest quam ipse habet" (no one can transfer a greater right to another than he himself has), and the throne was given to the male line heir, Philip, Count of Valois, a first cousin of the deceased king. At the time, Edward paid homage to Philip VI for his Duchy