On 14 June, Badoer left for Peraga, where his men had gathered, while the others began to gather at the Querini and Tiepolo palaces. Initially planned for the same night, the execution of the coup was postponed for the dawn of the next day, the feast of
Saint Vitus. The conspirators and their men, amidst cries of "Liberty" and "Death to Doge Gradenigo" divided into two columns that would converge on the
Piazza San Marco and seize the
Doge's Palace: one headed by Tiepolo, approaching from the area, and the other, led by Marco Querini and his sons Nicolò and Benedetto, starting from the
San Moisè area. The conspirators failed to heed the weather, with heavy rain delaying Badoer and his men in crossing the
Brenta River and the
Venetian Lagoon, as well as possible opposition: on the night of 14 June, Doge Gradenigo was warned by a commoner, Marco Donato, who informed him of the conspirators' plans. The Doge reacted with alacrity: all senior officials of the state were summoned to him—apart from one, Andrea Doro, who had resigned and joined the rebels—called upon his followers and friends to arm themselves and their servants and come to the Piazza San Marco, barricaded the square's entry points. Antonio Dandolo and Baldovino Dolfino were named as the Doge's lieutenants, while orders went out to the governors of the nearby islands of the Lagoon,
Murano,
Torcello, and
Chioggia, to raise their militia and come to Venice as soon as possible. The forces thus gathered by the Doge were not very numerous, but they were unknown to the conspirators, who furthermore failed to coordinate the movements of the different columns. As a result, the Querini column arrived at the square first and was shocked to encounter a formed body of men laying in wait. A brief standoff ensued as both sides encountered each other, broken when the loyalists under Marco Giustiniani launched their attack on Querini's men with loud cries. In the ensuing battle amidst the raging thunderstorm, Marco Querini and his son Benedetto were killed, and his supporters dispersed. Many of Querini's followers tried to reform at
Campo San Luca, but volunteers from the religious confraternity of the
Scuola Grande della Carità and the
painters' guild set upon them and dispersed them again, taking many prisoner. ; the painting anachronistically shows the
St Mark's Clocktower, which was erected in the late 15th century Tiepolo, in the meantime, had moved much slower than his father-in-law, as his supporters had stopped to plunder the public treasury, so that combined with Badoer's delay the loyalists were afforded the advantage of dealing with each rebel force in isolation. According to one report, some Milanese merchants appeared before Tiepolo and tried to offer to mediate with the Doge, but Tiepolo, as yet unaware of Querini's death and Badoer's delay, rejected it. Tiepolo and his men had barely reached the
Church of Saint Julian in the Merceria when they were informed of what had befallen the Querini column. Tiepolo hesitated, seeking refuge from the rain and holding council under a large
elder tree; but in the end he decided to press on regardless, hoping to gain a decisive victory before the arrival of the loyalist reinforcements from Chioggia. Tiepolo thus divided his own men in two so as to attack the square from two sides, one proceeding on the original course along the Merceria and the other coming from the direction of
San Basso. The ensuing fight was fierce and bloody, with the rebel troops being pelted with stones from the windows by the local inhabitants, until they began to retreat. At this point took place an event which entered Venetian folklore: close to where the
St Mark's Clocktower now stands, a commoner, named Giustina or Lucia Rossi, threw down a heavy stone
mortar at Tiepolo. It failed its target but hit the rebels' standard-bearer on the head and killed him. The man fell down and the standard, bearing the inscription 'Liberty', went down with him, disheartening the rebels who began to flee. By the afternoon, Tiepolo and many of his men managed to withdraw to the
Rialto market area, torching the offices of the and boards, though not before securing a large sum of money from the latter; they then crossed the wooden
Rialto Bridge, tore or burned it down to delay pursuit, and occupied and barricaded the buildings on the other side. Securely ensconced beyond the
Grand Canal, Tiepolo awaited the arrival of Badoer's reinforcements, but in vain: Badoer and his men were confronted while trying to cross the Lagoon on their way to Venice and quickly defeated by the loyalist of
Chioggia, Ugolino Giustinian, with Badoer himself being taken prisoner. Badoer's capture ruined any chances Tiepolo may have still had for success, but he still a strong position that would require much bloodshed to take. As a result, during the evening the Doge sent offers of a negotiated settlement to Tiepolo. The first embassy was rejected, but at length the aged and respected ducal councillor Filippo Belegno managed to persuade Tiepolo to accept terms. The terms, confirmed by the Great Council on 17 June, were that Tiepolo and his most prominent followers—those being members of the Great Council or holding rank sufficient for a candidacy—would leave the city unharmed and stay in exile in designated places in
Dalmatia or northern Italy for four years; the exiles were forbidden from approaching Zara, Padua,
Vicenza,
Treviso, or from finding refuge in any territory hostile to the Republic. The commoners that followed the patricians into rebellion were amnestied, provided that they declared their submission to the government, and all treasure or other property looted during the uprising was to be restored to the state or the private owners. The exception was Badoer, since he not only had participated in a conspiracy, but engaged in high treason by hiring foreigners and risking another war between Venice and Padua. On 18 June, he was tried and condemned by the
Council of Forty, and on the 22nd a session of the Great Council ordered his decapitation. His Paduan accomplices were likewise tried and condemned on the next day, with most also being executed as a result. Marco Querini's surviving son, Nicolò, managed to escape to Treviso and thence join Tiepolo in exile. ==Aftermath==