Saint Peter Celestine most commonly known as Saint Celestine V bears the title of the first Pope to have resigned when in Pontificate. Saint Celestine, Pietro di Murrone was born in born 1215 in Apulia in the Neapolitan province of Moline to a poor family. His parents were very virtuous, and charitable to the poor to the uttermost of their abilities. After his father's death, his mother, though she had eleven other sons, seeing his extraordinary inclination to piety, provided him with a literary education.

He became a Benedictine monk at the age of seventeen and was eventually ordained priest at Rome. His love of solitude led him first into the wilderness of Monte Morone in the Abruzzi, whence his surname, and later into the wilder recesses of Mt. Majella. He was strongly influenced by the life of John the Baptist, and took him as his model in his religious life. His hair-cloth was roughened with knots, he wore a chain of iron encompassing his emaciated frame, and he fasted every day except for on Sunday. Each year he kept four Lents, passing three of them on bread and water only, and he consecrated the entire day and a great part of the night to prayer and labour.

In July 1294, his pious exercises were suddenly interrupted by an incident unparalleled in ecclesiastical history. Three eminent dignitaries, accompanied by an immense multitude of monks and laymen, ascended the mountain, and announced that Pietro had been chosen as the new Pope by a unanimous vote of the Sacred College and humbly begged him to accept the honor.

Two years and three months had elapsed since the death of Nicholas IV on April 4, 1292 without much prospect that the conclave at Perugia would unite upon a candidate. Cardinal Latino Orsini admonished the fathers that God had revealed to a saintly hermit that if the cardinals did not perform their duty within four months, He would visit the Church with severe chastisement. All knew that he was referring to Pietro di Murrone.

Resistance was of no avail. He took the name of Celestine, to remind him of the heaven he was leaving and for which he sighed. He was seventy-two years old. After a reign of five months, Peter judged himself unfit for the office, and summoning the cardinals to his presence, he solemnly resigned his trust.

During the remaining three years of his life he worked many and great miracles. On the day after his abdication, his blessing after Mass healed a lame man. Saint Peter left the palace, desiring seclusion, but was brought back by the papal guards, for his successor feared a schism; crowds had followed Saint Peter. Lest he be prevailed upon to take back his office, he was put under surveillance at Anagni. Content, he remarked: I desired nothing but a cell, and a cell they have given me. And there he enjoyed his former loving intimacy with the Saints and Angels, and sang the Divine praises almost continually.

On Pentecost Sunday he told his guards he would die within the week, and immediately fell ill. He received the Last Sacraments, and the following Saturday, as he finished the concluding verse of Lauds, Let every spirit bless the Lord! he closed his eyes to this world and opened them to the vision of God.

Other Saints of the Day
1. Saint Ivo of Kermartin
2. Saint Dunstan of Canterbury
3. Saint Verena Bütler
4. Saint Crispin of Viterbo
5. Saint Hadulfus of Cambrai