Gregorius Magni Summum Pontificem
Martyrological notice
The historical Roman Martyrology commemorates Gregorius Magni Summum Pontificem on 3 September. The source places the commemoration at Romae Ordinatio incomparabilis viri.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Item Romae Ordinatio incomparabilis viri sancti Gregorii Magni in Summum Pontificem; qui, onus illud subire coactus, e sublimiori throno clarioribus sanctitatis radiis in Orbe refulsit.