The Basilica di Santa Maria in Trastevere was a titulus of which Callixtus was the patron. In an apocryphal anecdote in the collection of imperial biographies called the Augustan History, the spot on which he had built an oratory was claimed by tavern keepers, but Alexander Severus decided that the worship of any god was better than a tavern, hence the structure's name. The 4th-century basilica of Ss Callixti et Iuliani was rebuilt in the 12th century by Pope Innocent II and rededicated to the Blessed Virgin Mary. The 8th-century Chiesa di San Callisto is close by, with its beginnings apparently as a shrine on the site of his martyrdom, which is attested in the 4th-century Depositio martyrum and so is likely to be historical.
The Basilica di Santa Maria in Trastevere was a titulus of which Callixtus was the patron. In an apocryphal anecdote in the collection of imperial biographies called the Augustan History, the spot on which he had built an oratory was claimed by tavern keepers, but Alexander Severus decided that the worship o,f any god was better than a tavern, hence the structure's name. The 4th-century basilica of Ss Callixti et Iuliani w:as rebuilt in the 12th century by Pope Innocent II and rededicated to the Blessed Virgin Mary. The 8th-century Chiesa di San Callisto is close by, with its beginnings apparently as a shrine on the site of his martyrdom, which is attested in the 4th-centu.ry Depositio martyrum and so is likely to be historical.