On the morning of the following day, the true dimension of the battle was revealed. The French cavalry had suffered yet another defeat (after Crécy and Poitiers) to English defensive tactics, even though they were to eventually prevail in the conflict and unify their country in the final stages of the Hundred Years' War thanks to Joan of Arc. In the field, the bodies of Castilians were enough to dam the creeks surrounding the small hill. In face of this, the Portuguese King offered the enemy survivors an amnesty and free transit home. Leading figures of the Castilian nobility perished that day, as well as complete army units (such as that of the Castilian city of Soria). An official period of mourning was decreed in Castile that would last until the Christmas of 1387.