Rusticus of Torcello was a Venetian merchant, who with Bonus of Metamauco brougt the relics of St Mark to Venice in 828.
This document is the earliest description of the translation of St Mark to Venice in 827–828, and also of early Venice. This is a translation by René Seindal.
San Marco, or St Mark, is the patron saint of Venice since 828, and the Feast of St Mark on April 25th is an important day in Venice.