Visit my prior post dedicated to this champion defender against modernism and pray in a special way for his intercession. Also read my post on his funeral.
O God, Who to safeguard Catholic faith and to restore all things in Christ, didst fill the Supreme Pontiff, Saint Pius, with heavenly wisdom and apostolic fortitude: grant in Thy mercy: that by striving to fulfill his ordinances and to follow his example, we may reap eternal rewards. Through the same our Lord.
Prayer Source: 1962 Roman Catholic Daily Missal