Æthelflæd, Lady of the Mercians (d. 12 June 918), ruled Mercia from 911 to her death in 918. She was the eldest daughter of Alfred the Great, king of the Anglo-Saxon kingdom of Wessex, and his queen, Ealhswith. Æthelflæd was born at the height of the Viking invasions of England. Her father married her to Æthelred, Lord of the Mercians. After his death in 911, she ruled; the Anglo-Saxon Chronicle referred to her as the Myrcna hlæfdige, "Lady of the Mercians".