Edith
Once upon a time, the elements "ead", meaning "riches", and "gyo", meaning "war", untied to create a female name meaning "rich in war". That meaning made the name a perfect fit for medieval royalty. Medieval saints and queens, including St. Eadgyo of Wilton and Eadgyo Swan-Neck, had riches in a time when many people did not. Right before the twelfth century, the Norman Conquest occurred. William the Conqueror defeated King Harold II, who had a sister named Eadgyo. Eadgyo was coronated as a queen and supported the cult of Edward the Confessor. Not only did Queen Eadgyo survive the Norman Conquest, but her name also continued in usage. As of the twelfth century, Eadgyo became Edith in Modern English. Edith was one of the few Anglo-Saxon names to survive the Norman Conquest and, thus, the only one to be popular throughout the Middle Ages. It continued to be popular until the 17th century, after which it dropped out of the English top 50.