Legend claims the St. Gregory The good (d. 604) listened to the initial a few lines chanted by angels on a certain Easter early morning in Rome though he walked barefoot in an awesome spiritual procession and that the saint thereupon added the fourth line: “Ora Professional nobis Deum. Alleluia.” https://vita-pro-nobis87642.aioblogs.com/84558794/top-guidelines-of-vita-pro-nobis