The Pisano-Catalan Crusade to the Balearic Islands, which at the time was a Muslim taifa, consisted of an expedition in retaliation for the acts of piracy committed by the Muslims who inhabited it, carried out by Ramón Berenguer III and his allies, in 1114. Founded in a treaty of 1113 between the Republic of Pisa and the Count of Barcelona, it had the objective of taking the island from the Muslims and preventing the attack and obstruction of the convoys and ships of the Christian merchants who at that time were sailing in the Mediterranean Sea. Although Mallorca was once again in Muslim power, it served to lay the foundations for the future Catalan naval power and to strengthen business contacts in the Mediterranean.