The marriage of James III to Margaret (not Mary) of Denmark, the daughter of King Christian I, is described by Buchanan, Rerum Scoticarum historia fol. 135v, but there dated only to the period between 1466 and 1470. Harrison's date for the wedding is correct, but both he and Buchanan were wrong to say that the islands were ceded to Scotland on the birth of the future James IV - they were given in pawn for the new queen's dowry and never redeemed.