On 14 June 1256, Guglielmo of Verona and Narzotto dalle Carceri, the other two triarchs, repudiated their allegiance to William and pledged themselves to Venice.
O 14 de xuño de 1256, Guglielmo da Verona e Narzotto dalle Carceri, os outros dous triarcas, repudiaron a súa lealdade a Guillerme e comprometéronse con Venecia.