Regesta Pontificum Romanorum
Philipp Jaffé, 2nd ed. · 1885 · Latin West · public-domain-original
2 claims in this dataset rest on this source.
Documents read in it
- Donation of Constantine [object Object]
- The Pseudo-Isidorian Decretals [object Object]
A dated register of every papal letter to 1198, genuine and forged, with the forgeries marked. The Pseudo-Isidorian decretals are ninth-century forgeries that circulated for a thousand years as genuine papal law, and Jaffé is where they are flagged.