Descendants given in Browning, Charles H. Americans of royal descent, 7th ed. Baltimore : Gnealogical Pub. Co., 1986, pg. 331-334. aka Aethelflaed, Aelfled. Made an alliance with Welsh and Scots of Ireland. Inspired defence of Chester against Ingwar, a Norwegian chief who had been given land in the neighborhood. Built a fortress in Mercia Stormed Brecknock, 916 (The concise dictionary of national biography. Part 1 : from the beginnings till 1900. London : Oxford University Press, 1969, pg. 409).
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 ascended the throne. The Anglo-Saxon Chronicle referred to her as the Myrcna hlæfdige, "Lady of the Mercians" (wikipedia.com)