https://ccel.org/ccel/schaff/npnf213/npnf213.ii.vii.xi.html
Philip Schaff: NPNF-213. Gregory the Great (II), Ephraim Syrus, Aphrahat - Christian Classics...
gregory the greatphilip schaffnpnfephraimsyrus
https://actasanctorum.org/february/day-13/gregory-ii.html
Gregory II — Acta Sanctorum
Gregory II — English translation of the Acta Sanctorum, the Bollandist collection of hagiographic texts.
gregory iiacta sanctorum