In the spring of 1309 the Catalan Grand Company threatened by starvation in Macedonia, marched through the vale of Tempe into the granary of Greece, whence, a year later, they descended upon Lamia. The Duke of Neopatras had now come of age, and had not only emancipated himself from Athenian tutelage, but had formed a triple alliance with the Greek Emperor and the Greek Despot of Epeiros in order to prevent the ultimate annexation of his country by his French neighbours. In these circumstances the new Duke of Athens bethought himself of employing the wandering Catalans against the allies. Thanks to the good offices of Roger Deslaur, a knight of Roussillon who was in his employ, he engaged them at the same high rate of payment which they had received from Andronikos II. The Catalans at once showed that they were well worth the money, for by the end of a six months’ campaign they had captured more than thirty castles for their employer. Thereupon his three adversaries hastened to make peace with him on his own terms. Walter now rashly resolved to rid himself of the expensive mercenaries for whom he had no further use. He first selected 500 men from their ranks, gave them their pay and lands on which to settle, and then abruptly bade the others begone, although at the time he still owed them four months’ wages. They naturally declined to obey this summary order, and prepared to conquer or die; for retreat was impossible, and there was no other land where they could seek their fortune. Walter, too, assembled all available troops against the common enemies of Frankish Greece—for as such the savage Catalans were regarded. Never had a Latin army made such a brave show as that which was drawn up under his command in the spring of 1311 on the great Bœotian plain, almost on the self-same spot where, more than sixteen centuries before, Philip of Macedon had won that “dishonest victory” which destroyed the freedom of classic Greece, and where, in the time of Sulla, her Roman masters had thrice met the Pontic troops of Mithridates. All the great feudatories of Greece rallied to his call. There came Alberto Pallavicini, Marquess of Boudonitza, who kept the pass of Thermopylæ; Thomas de Stromoncourt of Salona, who ruled over the slopes of Parnassos, and whose noble castle still preserves the memory of its mediæval lords; Boniface of Verona, the favourite of the late Duke of Athens; George Ghisi, one of the three great barons of Eubœa; and Jean de Maisy, another powerful magnate of that famous island. From Achaia, and from the scattered duchy of the Archipelago, contingents arrived to do battle against the desperate mercenaries of Cataluña. Already Walter dreamed of not merely routing the company, but of planting his lion banner on the ramparts of Byzantium.