 This lasted until Guipuzcoa, Alava, and Vizcaya broke away from that kingdom amid a difficult political situation and became integrated into Castile under a treaty in 1200.The battle of Beotibar was fought to defeat attempts by the Navarrese to take back Guipuzcoa and reincorporate it.Part of the lore connected with the battle is the courage shown by the Loyola brothers, ancestors of Ignatius of Loyola, founder of the Society of Jesus, known as the Jesuits.