This led to more warfare. Conrad V, the son of Conrad IV, and the last of the Hohenstaufens, tried to regain the kingdom, and was defeated and decapitated at Naples. But twenty years later, the French who had made themselves thoroughly unpopular in Sicily were all murdered during the so-called Sicilian Vespers, and so it went. The quarrel between the Popes and the Emperors was never settled, but after a while the two enemies learned to leave each other alone.
In the year 1273, Rudolph of Hapsburg was elected Emperor. He did not take the trouble to go to Rome to be crowned. The Popes did not object and in turn they kept away from Germany. This meant peace but two entire centuries which might have been used for the purpose of internal organisation had been wasted in useless warfare.
It is an ill wind however that bloweth no good to some one. The little cities of Italy, by a process of careful balancing, had managed to increase their power and their independence at the expense of both Emperors and Popes. When the rush for the Holy Land began, they were able to handle the transportation problem of the thousands of eager pilgrims who were clamoring for passage, and at the end of the Crusades they had built themselves such strong defences of brick and of gold that they could defy Pope and Emperor with equal indifference.
Church and State fought each other and a third party — the mediæval city — ran away with the spoils.