Question: Who is the mother-in-law of Ælfflæd (Wife Of Edward The Elder)?
Sentence (from "Edward the Elder"): In the early 880s Æthelred, Lord of the Mercians, the ruler of western Mercia, accepted Alfred's lordship and married his daughter Æthelflæd, and around 886 Alfred adopted the new title King of the Anglo-Saxons as the ruler of all Anglo-Saxons not subject to Danish rule.
Relevant evidence: No