Ælfthryth of Wessex, also known as Elftrudis, was an English princess and a countess consort of Flanders to Baldwin II. Wikipedia
Born: 877 AD, Wessex
Died: June 7, 929 AD (age 52 years)
Spouse: Baldwin II, Margrave of Flanders (m. 884 AD)
Grandchildren: Baldwin III, Count of Flanders, Hildegard of Flanders, Arnulf II, Count of Boulogne, and more
Parents: Alfred the Great and Ealhswith
Siblings: Æthelflæd and Edward the Elder