EECONSTEUCTING THE EMPIEE 41 Latin emperor, had married the daughter of Charles of Anjou, king of Sicily. Charles promised, in 1278, to send an expedition to Constantinople, but the pope, seeing the efforts which Michael continued to make for Union, refused his sanction. Two years later, however, a new pope entered into a treaty with Venice and Naples to attack the empire, and Charles undertook to send eight hundred cavaliers to claim what he considered the rights of his grand- daughter. A body of troops was sent across the Adriatic to assist the Albanians, who were fighting against the emperor. The invaders were utterly defeated, and the empire was saved from the attack of Charles by the disorganisation produced by the Sicilian Vespers in 1283, a massacre in which 8,000 Frenchmen perished. In the twenty years that followed, a body of Spanish mercenaries played a prominent part in the Sicilian troubles. Spain had been engaged for three hundred years in a long and almost continuous struggle against the Moors. Fathers had dedicated their sons in successive generations to the defence of Christianity and their country, and the result was already to have formed a nation of brave and disciplined soldiers, such as Western Europe had not seen since the best days of the Eoman empire. Peter of Aragon had supplied a band of such soldiers to fight against France in Sicily and Calabria. In 1301 the marriage of Catherine of Courtenay, daughter of Philip, and granddaughter of Baldwin the Second, with Charles of Valois, son of Philip the Second of France, and brother of the king, put an end to the troubles in Sicily with the French. Now that, in 1302, peace was concluded in Sicily, their employers were anxious to be rid of the now useless merce- naries ; for, though their courage, their recklessness of danger, and their prowess were indisputable, their lawlessness, their cruelty to the inhabitants of the country where they were encamped, and their insubordination, even to their own officers, were no less remarkable. Moreover, Frederic of Sicily was unable to pay them, and they had already
