Where was the castle located in which is related to William Douglas and Margaret Hay?
George Douglas, 4th Earl of Angus: George Douglas, 4th Earl of Angus, Lord Douglas, Abernethy and Jedburgh Forest (c. 1427 – 12 March 1463) was a Scottish nobleman. Yester Castle: Yester Castle is a ruined castle, located 1.5 mi south east of the village of Gifford in East Lothian, Scotland.
i don't know