The concio (or concione) was the original popular assembly in the earliest times of Venice, which elected the doges.
“Maggior Consiglio” from the L’Archivio di Stato di Venezia: indice generale, storico, descrittivo ed analitico (1937) by Andrea da Mosto
“CONCIONE” from the Lessico Veneto (1851) by Fabio Mutinelli, translated by René Seindal.