Collectio Pauli

This collection of 53 letters of Gregory the Great was compiled by a certain Paulus (at Corbie), and Ewald refers to it as the "Collectio Pauli" or P for short. He knew five manuscripts containing P but no other collection of Gregory's letters, 14 that combine C (the Collectio CC epistolarum) and P. The circulation of this C+P collection north of the Alps only played an important role in establishing the non-Italian origin of 74T. For combinations with ρ, see Registrum Gregorii.

Ewald, Studien, https://resolver.sub.uni-goettingen.de/purl?PPN345858530_0003