St. Leo II, Pope and Confessor
Leo II, a Sicilian by birth, participated in the full priesthood of Christ (Introit, Epistle, Gradual, Alleluia) on becoming Pope. Guided by the Holy Ghost he gave their full value to the spiritual riches of the Church committed to his care by Jesus (Gospel, Communion).
He approved the acts of the sixth Council which condemned those who taught that Christ has only one will. Well versed in sacred singing, he perfected the melodies of the psalms and of the hymns of the Church. He was truly the father of the poor and by his example and preaching led every one to virtue. He died in 683 and was buried in the basilica of St. Peter.
Let us imitate the example of this saint (Collect) who was one of the successors of St. Peter on the pontifical throne.
Sacerdotes tui, Domine, induant justitiam, et sancti tui exsultent: propter David servum tuum, non avertas faciem Christi tui. * Memento, Domine, David et omnis mansuetudinis ejus.
Let Thy priests, O Lord, be clothed with justice, and let Thy saints rejoice: for thy servant David's sake, turn not away the face of Thy anointed. * O Lord, remember David and all his meekness.
(Psalm 131:9-10,1 from the Introit of Mass)
Deus, qui beatum Leonem Pontificem Sanctorum tuorum meritis coaequasti: concede propitius; ut, qui commemorationis ejus festa percolimus, vitae quoque imitemur exempla.
O God, who didst raise up blessed Pope Leo to rank with Thy saints in merit; grant, in Thy mercy, that we, who keep his festival, may also follow the example of his life.
From the Catholic Encyclopaedia: http://www.newadvent.org/cathen/09157a.htm