Question: Who is Eadhild's paternal grandmother?
Sentence (from "Eadhild"): In 926 Edward's son, king Æthelstan, received an embassy from his cousin, Adelolf, Count of Boulogne, on behalf of Hugh, and Æthelstan agreed to give his half- sister, Eadhild, in marriage in return for an enormous quantity of gifts and relics.
Relevant evidence: No