Alexander de Ard. by Earl Henry St. Clair, 1389.
IV. THE ST. CLAIR LINE OF THE EARLS OF ORKNEY.
William St. Clair of Roslin m. Isabella (?),
daughter of Malise, Earl of Stratherne.
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David. Henry, made Earl of Orkney 1379; m. (1)
Elisabeth, daughter of Malise (the younger),
Earl of Stratherne, Caithness, and Orkney;