The whole medieval period bears what may be called the Gregorian imprint; almost everything it had indeed came to it from the Pontiff – the rule of ecclesiastical government, the manifold phases of charity and philanthropy in its social institutions, the principles of the most perfect Christian asceticism and of monastic life, the arrangement of the liturgy and the art of sacred music (Pope St. Pius X, Iucunda Sane, 12 March, 1904).
Born: 540
Died: 604
Proclaimed a Doctor of the Church:…