Callixtus I   (a.k.a. Calixtus)   (m)   ?-222  
Bishops of Rome and the Popes   217-222
Saints
Callixtus II   (a.k.a. Calixtus)   (m)   c. 1065-1124  
Bishops of Rome and the Popes   1119-1124
Callixtus   (a.k.a. Calixtus)   (m)   ?-1183  
Bishops of Rome and the Popes   1168-1178
Callixtus III   (a.k.a. Calixtus)   (m)   1378-1458  
Bishops of Rome and the Popes   1455-1458
Calixtus Caravario   (m)   ?-1930  
Saints