What had happened was the attainment of the capitalistic stage and the enthronement of capital in the republican State. In place of strifes between wealth and nobility there had arisen the strife of capital and labour, the new aristocracy of wealth having in large part taken the place of that of descent. The latter transition had occurred nearly simultaneously in the other remaining Republics. Genoa had substituted factions with the names of new wealthy families for the old. In Siena, where the _bourgeoisie_ dispossessed the nobles, they were in turn assailed by "reformers" of the lower class, who were finally defeated in battle and exiled wholesale (1385). Meantime the hereditary tyrants of Milan, the Visconti, with their singular continuity of capacity, had grown stronger than ever, had built up a native and scientific military system, and more than ever menaced all their neighbours. Florence called in aid successively from Germany and France (1390-91); but the Milanese army triumphed over all; and the skilled adventurer Sir John Hawkwood, the hired general of the Florentine troops, could not hold his ground. The Emperor, as usual, was satisfied to take payment for non-intervention; and the reigning Visconti, Gian Galeazza, invested by the Emperor with the titles of Duke of Mantua and Count of Pavia, and the lordship of twenty-six cities, had by the year 1402 further compassed, by all manner of fraud and force, the mastery of Pisa, Perugia, Genoa, Siena, Lucca, and Bologna, dying of the plague at the height of his power. His sons being boys, his power broke up among his generals, to be in large part recovered later, however, by his second son, who first assassinated the elder.