Her successive husbands were: Magnús Óláfsson, King of Mann and the Isles,[3] Maol Íosa II, Earl of Strathearn,[4] Hugh, Lord of Abernethy,[5] and William FitzWarin.
[10] Within the same year, Maol Íosa is recorded to have owed a debt of £62 to the Scottish Crown,[11] a sum that could have been incurred as a result of the marriage.
[12] The Earls of Strathearn were not amongst the Scottish realm's most wealthy magnates, and it is likely that Maol Íosa's marriage to the widow of the King of Mann and the Isles contributed to his wealth and enhanced his prestige.
[14] When Maria rendered homage to Edward I, King of England in 1296, she styled herself "la Reẏne de Man".
[20] In 1300, John de Lyndeby, Prior of Holmcultram was appointed as her attorney to receive the portion of her dower in Ireland.