Namesakes

Bishops of Rome and the Popes: 3 popes, 1 antipope
Callixtus I (a.k.a. Calixtus)   217-222  
Callixtus II (a.k.a. Calixtus)   1119-1124  
Callixtus (a.k.a. Calixtus)   1168-1178  
Callixtus III (a.k.a. Calixtus)   1455-1458  
Saints: 1 blessed, 1 saint
Saint Callixtus I (a.k.a. Calixtus)   ?-222  
Blessed Calixtus Caravario   ?-1930