For 10 points, name this conflict that included the Battle of Agincourt and lasted from 1337 to 1453.
Extensions of this conflict included the Castilian Civil War and the War of the Two Peters. One side in this conflict lost most of their fleet after tying their ships together at the Battle of Sluys. Other English victories included the Battle of Poitiers and the Battle of Crécy, which was won largely due to the (*) English longbowmen, which were also instrumental in a battle fought on St. Crispin's Day in 1415. For 10 points, name this conflict that included the Battle of Agincourt and lasted from 1337 to 1453.
Extensions of this conflict included the Castilian Civil War and the War of the Two Peters.
{Hundred} Years' War