307 after divorcing his wife Minervina, Constantine married Fausta, the
daughter of the retired Roman Emperor Maximian, but murdered her in 326.
1084 Henry VI of Germany, after deposing Pope Gregory VII, was crowned
Holy Roman Emperor by Gregory's successor, Pope Clement III.
1146 Bernard of
Clairvaux preached his famous sermon in a field at Vézelay, urging the
necessity of a Second Crusade.
1657 Parliament offered Oliver Cromwell the
title of king in the Humble Petition and Advice, but he rejected the title.