Pope gregory i: Did you mean...?

The Etchmiadzin Cathedral (also spelled "Echmiatsin,” “Echmiadzin,” and “Edjmiadsin”) is located in the city of Etchmiadzin (also referred to as Vagharshapat), Armavir Province in what is now present-day Armenia. It is geographically situated...

The English Reformation began with Henry VIII of England (r. 1509-1547 CE) and continued in stages over the rest of the 16th century CE. The process witnessed the break away from the Catholic Church headed by the Pope in Rome. The Protestant...

Early medieval Irish book art is both beautiful and fascinating. It reflects a flourishing monastic culture which played a key role in the cultural development of Europe from the 6th to 9th centuries CE. Nowhere is this more clearly illustrated...

The Unam Sanctam (1302) was a papal bull issued by Pope Boniface VIII (served 1294-1303) requiring the complete submission of all people, including kings, to the authority and dictates of the pope. As the Church was understood as holding...

The Protestant Reformation (1517-1648) refers to the widespread religious, cultural, and social upheaval of 16th-century Europe that broke the hold of the medieval Church, allowing for the development of personal interpretations of the Christian...

Gildas (c. 500-570 CE) was a Romano-British monk, known primarily for a work entitled De Excidio et Conquestu Britanniae, translated as On the Ruin and Conquest of Britain. Gildas' work is a polemical sermon recounting British history while...

The First Crusade (1095-1102) was a military campaign by western European forces to recapture the city of Jerusalem and the Holy Land from Muslim control. Conceived by Pope Urban II following an appeal from the Byzantine emperor Alexios I...

The medieval indulgence was a writ offered by the Church, for money, guaranteeing the remission of sin, and its abuse was the spark that inspired Martin Luther's 95 Theses. Luther (l. 1483-1546) claimed the sale of indulgences was unbiblical...

The Council of Trent (1545-1563) was a meeting of Catholic clerics convened by Pope Paul III (served 1534-1549) in response to the Protestant Reformation. In three separate sessions, the council reaffirmed the authority of the Catholic Church...

The Knights Templar were established c. 1119 and given papal recognition in 1129. It was a Catholic medieval military order whose members combined martial prowess with a monastic life to defend Christian holy sites and pilgrims in the Middle...