(1401–1466) In 1438 war with Milan broke out again. Taddeo d'Este and Francesco Barbero conducted a long and gallant
defense of Brescia against Milanese troops under Piccinino.
Gattamelata broke out, making a skilled escape via mountain routes, leaving Taddeo with just 1,000 men to conduct the defense. The siege of Brescia lasted until December 1438, when Gattamelata made a feint that drew Piccinino away. The fighting continued, and in September 1439 d'Este was forced to surrender to greatly superior forces and was imprisoned in
Peschiera. In 1441 d'Este was back in Venice attending the celebrations of the marriage of Jacopo, son of Doge
Francesco Foscari. In the
Piazza San Marco his company competed for lavish prizes in lengthy tournaments with the companies of the
condottieri Francesco Sforza and
Gattamelata. His first wife having died, he married again in 1442 to Margherita Pio. In the 1440s Leonello and Taddeo d'Este were challenged by the canons of S. Giacomo,
Monselice, who claimed they had been levying tithes in the parish of S. Maria,
Solesino, by force for several years. In June 1443 Taddeo d'Este was commanded to take his company of 800 cavalry to
Ravenna, where he placed himself under the command of
Francesco Sforza, then serving as captain general of the anti-Papal league. In June 1445, acting as commander of the army but without the formal title, Taddeo was sent to Bologna with 1,000 cavalry and 400 infantry. The next year he managed to arrange for a part of the Bolognese forces to transfer to Venice, and after some further fighting was able to bring the war with Bologna to a close. He then had to return to Lombardy where a renewed struggle with Milan had begun. In 1447 d'Este seized and held
Piacenza for Venice. He defended the town with 2,000 lances, 2,000 infantry and 6,000 armed citizens. The town was besieged by Milanese forces under Francesco Sforza. In addition to Sforza's men the Milanese army had 10,000 soldiers and the
condottieri under leaders such as
Francesco Piccinino,
Guidaccio Manfredi,
Luigi dal Verme and others had 15,000 cavalry and infantry. The walls were broken down by cannon fire, and flooding of the
river Po meant that boats could approach the city walls. After fierce fighting, Taddeo d'Este, Alberto Scotto and the Venetian governor Gherardo Dandolo were forced to surrender and were taken captive. The town was thrown open to pillage and the inhabitants were treated with great cruelty. Due to his personal friendship with Sforza, d'Este was soon released. Taddeo d'Este died suddenly while attempting to take
Mozzanica on 21 June 1448. His state funeral was held in Brescia. His body was returned to Este, where it was buried in the family tomb in the church of S. Francesco. His male line died out in 1463. ==References==