Skip to content

John XXI

Short Cuts

Author and Publisher - Catholic Online

Image of John XXI

Facts

Birth: 1215
Death: 1277

Pedro Juliano, or Peter of Spain, was born in Lisbon c. 1210/20. The son of a physician, he studied at the University of Paris and taught medicine at the University of Siena. He became cardinal bishop of Tusculum in 1273 and attended the Second Council of Lyons the following year. He was elected pope in 1276. He hoped to re-establish unity with the Eastern church but was in his nine-month papacy more concerned with fighting the influence of Averroism at the University of Paris and with an attempt to launch a crusade. Peter is the author of Summulae logicales, a treatise on logic, and The Poor Man's Treasury, a book of cures. He wrote a medical treatise on the eye, a book on the soul, and a commentary on The Celestial Hierarchy of Dionysios.


John XXI Comments


More Saints






Browse Saints by Category


Popular Saints

Rank

Saint

17.

Image of St. Augustine of Hippo

St. Augustine of Hippo

St. Augustine of Hippo is the patron of brewers because of his conversion from a former life of loose living, which included parties, entertainment, and worldly ambitions. His complete ... continue reading | shop

18.

Image of St. Clare

St. Clare

St. Clare of Assisi was born in Assisi on July 16, 1194, as Chiara Offreduccio, the beautiful eldest daughter of Favorino Sciffi, Count of Sasso-Rosso and his wife Ortolana. Tradition says ... continue reading | shop

19.

Image of St. Lucy

St. Lucy

Lucy's history has been lost and all we really know for certain is that this brave woman who lived in Syracuse lost her life during the persecution of Christians in the early fourth ... continue reading | shop

All Popular Saints

Saint of the Day

Image of St. Catherine of Siena

St. Catherine of Siena

St. Catherine of Siena was born during the outbreak of the plague in Siena, Italy on March 25, 1347. She was the 25th child born to her mother, although half of her brothers and sisters did not ... continue reading

More Saint of the Day

Saint of the Day by E-Mail

Saint of the Day newsletter icon

Learn about the lives of the saints and other saint resources, including a calendar, over 5,000 saint biographies, our most popular saints, and a list of patron saints. 7 days / week. See Sample


Required


Female Saints

Image of St. Teresa of Avila

St. Teresa of Avila

Teresa of Ávila was born Teresa Ali Fatim Corella Sanchez de Capeda y Ahumada in Ávila, Spain. Less than twenty years before Teresa was born in 1515, Columbus opened up the Western Hemisphere to European colonization. Two years after she was born, Luther started the ... continue reading

More Female Saints



Saint Calendar
Saint Feast Days
Saint Fun Facts

Angels

Image of St. Michael the Archangel

St. Michael the Archangel

Saint Michael the Archangel isn't a saint, but rather he is an angel, and the leader of all angels and of the army of God. This is what the title "Archangel" means, that he is above all the others in rank. St. Michael has four main responsibilities or offices, as we ... continue reading


Image of St. Gabriel, the Archangel

St. Gabriel, the Archangel

St. Gabriel is an angel who serves as a messenger for God to certain people. He is one of the three archangels. Gabriel is mentioned in both the Old and the New Testaments of the Bible. First, in the Old Testament, Gabriel appears to the prophet Daniel to explain his ... continue reading



Saints Fun Facts

Saints Fun Facts for St. Brigid of Ireland

St. Brigid of Ireland

Saint Brigid was born Brigit, and shares a name with a Celtic goddess from whom many legends and folk customs are associated. There is much debate over her birthparents, but it is widely believed her mother was Brocca, a Christian baptized by Saint Patrick, and her ... continue reading

Saints Fun Facts for St. Bruno

St. Bruno

Bruno was born in Cologne of the prominent Hartenfaust family. He studied at the Cathedral school at Rheims, and on his return to Cologne about 1055, was ordained and became a Canon at St. Cunibert's. He returned to Rheims in 1056 as professor of theology, became head ... continue reading



Christian Saints & Heroes

Catherine of Siena: We Need Saints for this Missionary Age

By Deacon Keith Fournier

Father, raise up women like Catherine of Siena for this new missionary age of your Church. Women who are so in love with you, and so conformed to the Image of your Son, they can do for your Church in this hour, what she did in her own. Saints are a gift for the ... continue reading

More Christian Saints & Heroes

Never Miss any Updates!

Stay up to date with the latest news, information, and special offers.

Catholic Online Logo

Copyright 2017 Catholic Online. All materials contained on this site, whether written, audible or visual are the exclusive property of Catholic Online and are protected under U.S. and International copyright laws, © Copyright 2017 Catholic Online. Any unauthorized use, without prior written consent of Catholic Online is strictly forbidden and prohibited.