Bajamonte Tiepolo conspires with the aristocratic Querini family, his in-laws, to take control of the Venetian government.

Word of the plot leaks out, compelling the conspirators to rebel prematurely and seize the piazza on June 15, 1310.

Pietro Gradenigo, the Doge of Venice, dispatches forces that suppress the rebels in street fighting, capturing and executing Marco Querini, the head of the family, but Tiepolo to start a new life in Istria.

The council of ten, a secret tribunal, is established on July 10, to “protect” the Venetian republic by rooting out conspiracies and hunting down rebels.

Intended as a temporary response to the revolt led by Tiepolo against the Doge, it is given emergency powers to deal with the resulting unrest.

The Council of Ten, or simply the Ten, is to be one of the major governing bodies of the Republic of Venice from 1310 to 1797.

Although originally established for a period of two months, its authority will be continuously renewed, until it becomes a permanent body in 1334.

Although its actions are often secretive, it will generally considered to be fair and effective by the citizens of the Republic.