

Angelic Summa on Cases of Conscience
Summa angelica de casibus conscientiae
Angelus de Clavasio's Summa angelica de casibus conscientiae, an alphabetically arranged confessor's manual of cases of conscience first compiled in the 1480s. It treats moral and canonical questions — including a substantial entry on simony — in 659 articles ordered A–Z, drawing on the canon-law and theological tradition. This editio princeps was printed at Chivasso by Jacobino Suigo, 13 May 1486. This copy is from the Biblioteca Nazionale Centrale di Roma.
Author

Angelo Carletti di Chivasso
Angelus de Clavasio
1411–1495