| 1456 | Sylvester Mazzolini Prierias is born. | |
|---|---|---|
| 1471 | Prierias becomes a Dominican. | |
| 1495 | Prierias begins teaching at Bologna. | |
| 1514 | Prierias begins teaching in Rome. | |
| 1514 | Prierias publishes *Summa Silvestrina.* | |
| 1515 | Prierias named "Master of the Sacred Palace,"the court theologian to pope Leo X. | |
| 1517 | Pope Leo X commissions Prierias to respond to Luther's 95 thesis. Prierias' *Dialogus* is sent to Luther who responds with *Responsio.* | |
| 1523 | Sylvester Mazzolini Prierias dies. |