From the Roman Martyrology: January 10th

"In the Thebaid, the birthday of St. Paul, the first hermit, who remained alone in the desert from the 16th to the 113th year of his age.  St. Anthony beheld his soul borne up to heaven by angels, amid the choirs of Apostles and Prophets.  At Arezzo in Tuscany, blessed Gregory X of Piacenza, who was called from the Archdeaconry of Liege to be Pope, and held the II Council of Lyons.  Under him the Greeks were restored to the unity of the faith, discord among Christians healed, the recovery of the Holy Land begun.  He deserved well of the Universal Church, which he governed in great holiness."