Cassone della Torre (or Casso, Cassono, Castone, Gastone), also called Mosca (died 20 August 1318) was an Italian medieval condottiero and feudal lord.

[1] In his youth, he stayed in Friuli, then ruled by his grand-uncle Raimondo as patriarch of Aquileia: here most members of the family lived in exile from Milan after their arch-rival House of Visconti had been able to seize the power in that city.

In 1309 he took part to a successful papal military expedition against the Republic of Venice, returning to Milan with great honors.

[3] Emperor Henry VII appointed Cassone mediator between the claims of the families Torriani and Visconti who were in long conflict for ruling Milan.

[4] On 31 December 1316 Cassone renounced the title of See of Milan, and was appointed as secular patriarch of Aquileia by pope John XXII.