Mark the Evangelist is the traditionally ascribed author of the Gospel of Mark. Mark is said to have founded the Church of Alexandria, one of the most important episcopal sees of early Christianity. His feast day is celebrated on April 25, and his symbol is the winged lion.

In 828, relics believed to be the body of Saint Mark were stolen from Alexandria (at the time controlled by the Abbasid Caliphate) by two Venetian merchants with the help of two Greek monks and taken to Venice. A mosaic in St Mark's Basilica depicts sailors covering the relics with a layer of pork and cabbage leaves. Since Muslims are not permitted to eat pork, this was done to prevent the guards from inspecting the ship's cargo too closely.

In 1063, during the construction of St Mark's Basilica in Venice, Saint Mark's relics could not be found. However, according to tradition, in 1094, the saint himself revealed the location of his remains by extending an arm from a pillar. The newfound remains were placed in a sarcophagus in the basilica.

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