Malise Graham, 1st Earl of Menteith (c. 1407–1490) was a 15th-century Scottish magnate, who was the heir to the Scottish throne between 1437 and 1451, if Elizabeth Mure's children were not counted as lawful heirs (a question that hadn't been addressed).
By 1437, all the male descendants of Elizabeth Mure had been executed, or had otherwise died, except for the king himself, James II, leaving only the heirs general. Robert II had married Elizabeth Mure in a manner that was considered uncanonical, making the legitimacy of his children by her questionable. A 1373 Act of the Scottish Parliament avoided this issue by expressly putting the sons and their own heirs male into the succession, but it did not answer the question of whether the female descendants of Elizabeth Mure counted as lawful heirs.
Malise was Robert II's grandson, and senior heir, by his second wife, about whom the canonicity of the marriage was undoubted. He was also the most senior male heir (regardless of the legitimacy of Elizabeth Mure's marriage).
His escutcheon is described as "Chequy, upon a fess, three escallops".[1]