Alphabetical Index for Who's Who: H

Though best known for her relationship with Peter Abelard, Heloise was a brilliant scholar in her own right. Heloise was prioress of Argenteuil and abbess of the Paraclete.

Harun al-Rashid was the fifth Abbasid caliph. He and his fabulous court at Baghdad are immortalized in The Thousand and One Nights

King Richard I of England was known as Lionheart for his courage and prowess on the battlefield.

Pope Hormisdas put an end to the Acacian schism that had separated the Eastern and Western churches since 484.

King Henry IV of England usurped the English crown from Richard II, beginning the Lancastrian dynasty and planting the seeds of the Wars of the Roses.

Henry Tudor became King Henry VII of England after defeating Richard III at the Battle of Bosworth Field.

Henry VIII's political maneuverings resulted in a break with the Catholic Church and the launch of the English Reformation.

Known as Sibyl of the Rhine for her musical compositions and poetry, Hildegard of Bingen was a visionary mystic and abbess of the Benedictine cloister of Disibodenberg