Heresy: Did you mean...?

Henry V of England ruled as king from 1413 to 1422. Succeeding his father Henry IV of England (r. 1399-1413), Prince Henry established himself as a fine military leader in battles against English and Welsh rebels in the first...

The Achaemenid Persian Empire functioned as well as it did because of the efficient bureaucracy established by its founder Cyrus the Great (r. c. 550-530 BCE) which was administered through the satrapy system. A Persian...

Argula von Grumbach (née von Stauff, l. 1490 to c. 1564) was a Bavarian theologian, writer, and reformer, who became a controversial figure after her 1523 letter To the University of Ingolstadt protesting the arrest of a young...

Olympia Fulvia Morata (l. 1526-1555, also given as Olimpia) was an Italian scholar, poet, and writer who sought to advance the Protestant Reformation in Italy. She was considered one of the greatest classical scholars of her...

Paulus Orosius (usually given as Orosius, 5th century) was a Christian theologian and historian who was also a friend and protege of Saint Augustine of Hippo (354-430). He is best known for his...

The Bohemian Reformation (c. 1380 to c. 1436) was the first concerted effort by Catholic clergy to reform the abuses and corruption of the medieval Church. Bohemian clerics and theologians called for reform and, like later...

Zorvanism (also given as Zuvanism, Zurvanism) was a sect of the Persian religion Zoroastrianism which emerged in the late Achaemenid Empire (c. 550-330 BCE) and flourished during the Sassanian Empire (224-651 CE). It is often referenced...

Johann Eck (l. 1486-1543) was a Catholic theologian and writer best known for his disputations with Martin Luther (l. 1483-1546) beginning in 1517 and continuing until his death in 1543. Eck maintained the position that, if anyone...

Cardinal Thomas Cajetan (l.c. 1468-1534) was a Catholic theologian and philosopher best known for his disputations with Martin Luther (l. 1483-1546) beginning in 1518. Cajetan, a philosophical Humanist, was thought to have...

Religion in the Middle Ages, though dominated by the Catholic Church, was far more varied than only orthodox Christianity. In the Early Middle Ages (c. 476-1000), long-established pagan beliefs and practices entwined...