For 10 points, name this medieval conflict that did not actually last a century.
Naval battles in this conflict included the Battles of Winchelsea and Sluys (SLOICE). Pedro the Cruel assisted one side's forces at the Battle of Najera. One of the victorious commanders at that battle, Edward, the Black Prince, was also victorious during this war at the Battle of Poitiers. Other English monarchs who fought during this conflict included Edward III and Henry V; their victories included such battles as Crecy and Agincourt. For 10 points, name this medieval conflict that did not actually last a century.
Naval battles in this conflict included the Battles of Winchelsea and Sluys (SLOICE).
{Hundred} Years' War