Cosimo III de' Medici, Grand Duke of Tuscany
Some sources say Mamilian's relics were translated to Rome, to the Church of Santa Maria in Monticelli, and subsequently to Spoleto. Some of his relics may have been taken to Palermo. Another tradition states that Cosimo III de' Medici, Grand Duke of Tuscany returned Mamilian's entire body to Giglio in the 17th century.