The peace of November 1480 did not last long. Sixtus IV., entirely under the influence of his nephew Girolamo Riario, had deposed Antonello Ordelaffi in order to give Forli to Riario, who was known also to covet Faenza. This was a direct menace to Florence whose road to the Adriatic would have been cut off. Ferrara likewise attracted him; he visited Venice, where he was received like a king and made a patrician of the Republic, to plan an attack on Duke Ercole. Venice was to take the Duchy of Modena, which belonged to the Duke, while Riario added Ferrara to his other possessions. A pretext was easily found. The Venetians claimed the sole right of supplying salt to North Italy from Cervia and summoned the Duke to cease collecting it at Comacchio. He refused and war was declared in May 1482. Preparations for resisting Riario and Venice, and defending Ferrara, were pushed forward in feverish haste, as is shown by the letter from the Duke of Urbino to Lorenzo, while those from Ugolino Baccio relate to that simple-minded, scatter-brained Slav, Andrea Zuccalmaglio, a Dominican Archbishop of Krain. Sent to Rome in 1479 as ambassador by the Emperor Frederick III. he was intensely shocked by what he saw and did not hide his feelings. The Pope showed his displeasure and the Archbishop was recalled. Before he could leave Rome he was imprisoned in Castel S. Angelo, and on his release went to Basel determined to proclaim a Council. He assumed the titles of Cardinal and Papal Legate, and made a clever notary of Trier, Peter Numagen, his secretary, who in his _Gesta Archiepiscopi Crayneris_ describes his master as touched in the brain. On March 25th he denounced Sixtus IV. during service in the cathedral and solemnly proclaimed a Council. On July 20th he cited the Pope thus: “Francesco of Savona, son of the devil, you entered your Office not through the door, but through the window of simony. You are of your father the devil and labour to do your father’s will.” Sixtus excommunicated him and laid Basel under an interdict, of which no notice was taken. He was both angry and alarmed as he suspected the Emperor of secretly abetting the Archbishop, while Milan and Florence sent envoys to see how matters stood. The Florentine evidently at first sided hotly with the Archbishop, and believed in the possibility of a reforming Council. But Lorenzo was cautious. He left Baccio’s letters unanswered, to the poor man’s discomfiture. The Archbishop was disavowed by the Emperor, and the magistrates refusing to give him up to the papal Legate he was imprisoned in Basel, and hanged himself in his cell in November 1484. Frederick, _Duke of Urbino_, _to_ Lorenzo de’ Medici