┌─Crínán of Dunkeld
┌─Duncan I King of Scotland
│ │ ┌─Malcolm II King of Scots ⇒
│ └─Bethóc
┌─Malcolm III King of Scotland
│ └─Suthen
Mary of Scotland
│ ┌─Æthelred the Unready King of England ⇒
│ ┌─Edmund Ironsides King of England
│ │ └─Ælfgifu ⇒
│ ┌─Edward the Exile
└─Margaret of Wessex
└─Agatha