During this time bridges had been thrown over the ditch and engines set to work at the wall which, with the assistance of some friends within, was perforated sufficiently to allow of a man-at-arms leading his horse through; the assailants were soon united and an obstinate conflict followed with various success until broad daylight, when the Florentines succeeded in overcoming all opposition, and then, driving their enemy from the strong but as yet unfinished citadel, continued the plunder of Pistoia for eight successive days. This event was known at Rome only three days afterwards and raised Castruccio’s anger against Ludwig for compelling him to leave Tuscany. He instantly set off with five hundred horse and a thousand crossbowmen, and taking the Maremma road pushed eagerly forward with only twelve followers; after some days, travelling through a very dangerous country, Castruccio reached Pisa on the 9th of February, where he soon contrived by intrigue and influence to acquire supreme authority--a tolerable compensation for the loss of Pistoia. CASTRUCCIO’S NEW CONQUEST; HIS SUDDEN DEATH While Castruccio was steadying himself in the government of Pisa, Sanguineto and the Florentines were in high disputation about putting their recent conquests into a proper state of defence; the former insisting that he had done his part in capturing the town, while the citizens maintained that the duke was bound to discharge such expenses from his salary. The altercation continued and Pistoia remained unvictualled; but the Florentines, having gained some trifling advantages, grew as careless and confident as if fortune had never left their arms, while Castruccio hurried on his preparations for recapturing the neglected place. Nevertheless the Pisans and even his former adherents, now disliking his arbitrary sway, offered their city to Ludwig; he, fearful of alienating Castruccio, referred them to the empress, by whom it was accepted and her vicar immediately despatched to take the reins of government. Castruccio was not thus to be despoiled; he received the officer respectfully, but scoured the city with his horsemen in the manner of the age as a mark of sovereignty; then dismissed the imperial lieutenant loaded with gifts and caused himself to be elected and proclaimed absolute lord of Pisa for two years.