The same ambitions doubtless existed among the Guelphs, but the feudal aristocracy had far less influence in their party, the majority of which consisted of merchants and wealthy men of the people. Besides, the Pope was a near neighbour during the interregnum of the Empire, the Guelph cities were at the same time under the dangerous protection of an ambitious pontiff, and that of the equally ambitious Charles I. of Anjou, peacemaker and vicar-imperial of Tuscany. Charles nominated the Podestà of every Guelph Tuscan city, and whenever he failed to appear in person, sent a representative, called by the chroniclers a royal _maliscalco_, with an escort of some hundred horse and foot. Pisa, Arezzo, and all other Ghibelline cities refusing to acknowledge his authority, were exposed to continual threats from without, and lacerated within their walls by the attacks of would-be tyrants. On the other hand, the Guelph cities lived in continual terror of the king's ambitious designs; but Charles's position was not sufficiently assured for him to be able to use his temporary and limited office as a pretext for asserting sovereign power over Tuscany, although such was his secret aim. For the moment it was enough to play the part of high protector of all civic rights and privileges, so that the Guelph cities might be tricked into counting on his help both against Ghibelline attacks from without and internal treason in favour of tyranny. The Florentines, however, were not easily hoodwinked regarding either future or present events. They had asked Charles to accord them his protection, but only within certain limits, which, at any cost, they were determined should not be overstepped. They too nourished a secret aim--namely, to use the king's forces, not for the increase of his power, but towards the establishment of their own supremacy in Tuscany. The authority of the Empire was much diminished in Italy; the temporal strength of the Papacy was also on the wane, and the Communes, realising their greater independence, hastened to enlarge their respective territories. All Italian cities now had this end in view. But if one city waxed powerful, all its neighbours had either to pursue the same course or become its prey. Thus there was continual war between this and that city, less from party strife or jealousy than in necessary defence of their own interests. Besides, with the new custom of hiring foreign soldiers and captains of adventure, any one with gold at his command could quickly collect a powerful force and attack some of his neighbours. Hence every city or state had to be always on the alert and continually enlarging its strength and power. It was for this purpose that the Florentines now resolved to turn to account the authority, prestige, and forces of King Charles.