were stronger in the new city, and the Ghibellines, who had their base in the old city. The parties were so irreconcilable that the former built a second Communal Palace, the still existing Palazzo Cittanova ("new city's palace"). Pro-Empire When Frederick Barbarossa descended into Italy to assert his authority, Cremona sided with him in order to gain his support against Crema, which had rebelled with the help of Milan. The subsequent victory and its loyal imperial stance earned Cremona the right to create a mint for its own coinage in 1154. In 1162, Imperial and Cremonese forces assaulted Milan and destroyed it. Lombard League However, in 1167 the city changed sides and joined the Lombard League. Its troops were part of the army that, on 29 May 1176, defeated Barbarossa in the Battle of Legnano. However, the Lombard League did not survive this victory for long. In 1213, at Castelleone, the Cremonese defeated the League of Milan, Lodi, Crema, Novara, Como and Brescia. In 1232, Cremona allied itself with Emperor Frederick II, who was again trying to reassert the Empire's authority over Northern Italy. In the Battle of Cortenuova, the Cremonese were on the winning side. Thereafter Frederick often held his court in the city. In the Battle of Parma, however, the Ghibellines suffered a heavy defeat and up to two thousand Cremonese were made prisoners. Some years later, Cremona took its vengeance by defeating Parma's army. Its army, under the command of Umberto Pallavicino, captured Parma's carroccio and for centuries kept the enemy's trousers hanging from the Cathedral's ceiling as a sign of the rival's humiliation. In 1301 the troubadour Luchetto Gattilusio was podestà of Cremona. During this period Cremona flourished and reached a population of up to 80,000, larger than the 69,000 of 2001. Seignory Lords In 1266, Pallavicino was expelled from Cremona, and the Ghibelline rule ended after his successor Buoso da Dovara relinquished control to a consortium of citizens. In 1271 the position of Capitano del Popolo ("People's Chieftain") was created. In 1276 the Signoria passed to marquis Cavalcabò Cavalcabò; in 1305 he was succeeded by his son Guglielmo Cavalcabò, who held power until 1310. During this period many edifices were created or restored including the belfry of the Torrazzo, the Romanesque church of San Francis, the cathedral's transepts and the Loggia dei Militi. Moreover, agriculture was boosted with a new network of canals. After some