Many tourists think that the glorious temple of San Petronio on Piazza Maggiore is the main cathedral of Bologna. But not so. The Cathedral of the city is the church of St. Peter. The greatest early riddles about the Church of St. Peter in Bologna date back to the 10th century, and in 1141 the buddy died away at the later. Later, it was inspired by the Romanesque style, with which the crypt appeared, and in 1184 the church was re-consecrated by Pope Lucius III. In 1222, the roci won again suffered for an hour to the earth coward, the ala bula was inspired by the Gothic style.→