Under the vigorous and beneficent rule in Tuscany of the great Countess Matilda (1076-1115) Florence was able quietly to consolidate and extend her power without raising any thorny questions of formal jurisdiction. But on the death of Matilda, when the Church and the Empire equally claimed the succession and were equally unable efficiently to assert their claims, it was inevitable that an attempt should be made to establish the _de facto_ supremacy of Florence over Fiesole and the whole outlying district upon a firmer and more formal basis. It was equally inevitable that the attempt should be resisted. Within Florence, as we have seen, there was a heterogeneous, but as yet fairly united citizenship. The germs of organization consisted on the side of the nobles in the clans and the Tower-clubs, and on the side of the people in the Trade-guilds. The Tower-clubs were associations each of which possessed a fortified tower in the city, which was maintained at the common expense of the associates, and with which their houses communicated. Of the Trade-guilds we shall speak briefly hereafter. In the surrounding country the territorial nobility watched the growing power and prosperity of Florence with jealousy, stoutly resisted her claims to jurisdiction over them and their demesnes, and made use of their command of the great commercial highways to exact regular or irregular tolls, even when they did not frankly plunder the merchants. Obviously two struggles must result from this situation. The city as a whole was vitally concerned in clearing the commercial routes and rendering the territorial nobility harmless; but within the city two parties, who may almost be regarded as two nations, contended for the mastery.