List of popes
In 1444, Pope Eugene IV named him a cardinal, and Borgia became a member of the Roman Curia. During the siege of Belgrade (1456), Callixtus initiated the custom that bells be rung at midday to remind the faithful to pray fo
Pope sixtus
Which pope had children
- Callixtus meaning
| Pope sixtus | Pope pius ii letter to mehmed |
| Which pope had children | List of popes |