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Line 162
17.BALDWIN II, the Bald, b. 863/5, Count of Flanders and Artois, d. 918; m. 884, ALFTHRYTH (ETHELSWITH0 (44-16) of Wessex, d. 7 June 929, dau. of ALFRED THE GREAT (1-14), (CCN 112).

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Line 44
16. ALFTHRYTH (ETHELSWITH0 of Wessex, d. 7 June 929,; m. BALDWIN II (162-17), Count of Flanders, d. 917. (ASC; Ethelwerd, Chronicle, 1-2; William of Malmsbury, 121; L'Art de Verifier Les Dates; etc.) All descendants of Lines 162 to 169 belong to the posterity of King Alfred the Great.
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From Wikipedia, the free encyclopedia
Ælfthryth of Wessex (877 – 7 June 929), also known as Elftrudis (Elftrude, Elfrida), was an English princess and a countess consort of Flanders.
She was the youngest daughter of Alfred the Great, the Saxon King of England and his wife Ealhswith. Her siblings included King Edward the Elder and Æthelflæd.
Between 893 and 899, Ælfthryth married Baldwin II (died 918), Count of Flanders.[1] They had the following issue:
Arnulf I of Flanders (c. 890–964/65); married Adela of Vermandois
Adalulf, Count of Boulogne (c. 890 – 933)
Ealswid
Ermentrud
1. Abels, Richard P. (1988). Lordship and Military Obligation in Anglo-Saxon England. British Museum Press. p. 189. ISBN 978-0-7141-0552-9.