He fortified Lucca, and prepared to invade Florentine territory. The Florentines sent a strong detachment of troops into Lombardy on condition that in the following summer the Genoese and other Guelfic powers were to attack Lucca on every side and annihilate the rising power of Castruccio. Scarcely had an army been assembled for this purpose, when intelligence arrived that their principal condottiere, Jacopo di Fontanabuona, had passed over with all his following to the enemy; he had been commissioned to make himself master of Buggiano and other places by treachery, but failed, and soon after joined Castruccio with two hundred men-at-arms.
Castruccio with this reinforcement and the possession of his enemy’s secrets crossed the Gusciano on the 13th of June, 1323, attacked Fucecchio and other places, ravaged the surrounding country, then passed the Arno, devastated the territory of San Miniato and Montepopoli with all the vale of Elsa, and marched quietly back to Lucca. On July 1st he suddenly reappeared in front of Prato, only ten miles from the capital, with six hundred men-at-arms and four thousand infantry; the citizens sent in terror to Florence for help, but paralysed by Fontanabuona’s treachery she was nearly destitute of regular troops. The citizens however had not quite forgotten the use of arms, and their spirit was still high; the shops were immediately closed, a candle was placed at the Prato gate, and every individual liable to serve summoned to the ranks ere it burned out, under the penalty of losing a limb; a proclamation being issued to announce that all exiles who instantly joined the army would be pardoned and restored to their country. By these prompt measures, twenty-five hundred men-at-arms and twenty thousand infantry were in the field round Prato on the 2nd of July, only one day after Castruccio’s appearance, four thousand of whom were exiles!
[1323-1324 A.D.]
Castruccio’s rash advance with so small a force might have ended disastrously if the Florentines had been well commanded; but he retired in the night and made an unmolested retreat to Serravalle, the discord in the Florentine camp, an offset from civil dissension, having saved him. Thus ended this singular campaign in which the army scarcely saw an enemy, but which brought back danger and revolution to the state. The Florentines now added three subalterns (pennoniere) to each urban company, so that the whole force became infinitely more flexible and divisible and better adapted to real service.
He soon recommenced his successful incursions, but was generally too weak to oppose the united strength of Florence; the moral effect of his character was however very imposing in both states and nothing was too daring either for his arms or conscience. His Ghibelline allies the Pisans were deeply engaged in war with the king of Aragon for the defence of Sardinia, which offered him a favourable occasion as he thought of becoming their master; the conspiracy was however discovered; the conspirator Betto or Benedetto Malepra de’ Lanfranchi with many others lost his head; all friendship or alliance with Lucca was renounced by Pisa, and 10,000 golden florins were offered for the head of Castruccio. About two months afterwards he suddenly left his capital at the head of a small detachment on the 19th of December, and by the treachery of an inhabitant of Fucecchio was admitted at night into the town during a deluge of rain, which at first concealed his aggression; the subsequent struggle was fierce and bloody; a great part of the place was taken, but alarm fires on the towers brought strong reinforcements from the neighbouring garrisons; Castruccio held on with desperate resolution against an overwhelming force of soldiers and citizens until, wounded, fatigued, and hopeless of success, he sullenly retired with the loss of banners and horses, but still unmolested; for the glory of repulsing him was deemed sufficient, and the habitual dread of his prowess left no appetite for a second encounter.
San Miniato, Florence
Nothing of importance occurred between Castruccio and the Florentines in the following year, for the former was busy with his intrigues against Pisa and Pistoia, and the latter employed reducing some petty chieftains in the Mugello, but still more seriously on the side of Arezzo where the bishop was rapidly gaining ground against the Guelfs. Five hundred men-at-arms were engaged in France, and other preparations making for the day of battle which the Florentines foresaw must come before Castruccio could be arrested in the rapid course of his ambition; a new confederacy was therefore formed in March between Florence, Bologna, Siena, Perugia, Orvieto, and Agubbio; with other communities and Guelfic lords, for the recovery of Città di Castello, which was to be effected by a combined army of three thousand men-at-arms levied for three years, a great part of which was maintained by the Florentines.
[1324-1325 A.D.]
Castruccio meanwhile had moved towards the Pistoian Mountains, and repairing the castle of Brandelli, whence there was a view of both Pistoia and Florence, called it Bellosguardo and gazed with a longing eye on either city. One was only his own in perspective, the other was almost in his grasp; and Filippo Tedici, who had driven his uncle from the government of Pistoia, and was in treaty with Castruccio and Florence, pretending the greatest alarm, demanded assistance of the latter, with whose aid he hoped to better his bargain. A body of troops was directly sent under command of the podesta, but discovering his object, this officer returned in disgust; upon which he made his terms with Castruccio, and Pistoia was suffered for a while to exist as an independent state. Florence had attempted to gain it by treachery but failed, and Castruccio, tired of Filippo’s intrigues, offered him 10,000 florins and his daughter Dialta in marriage for immediate possession of the city. This secured Filippo, who before daylight on the 5th of May, 1325, opened a gate to the Lucchese general; but the latter distrusting his ally would not enter until he had actually unhinged it, and then took possession of the place in the manner of the time by scouring the streets at the head of his cavalry and trampling upon all that came in his way.