Máire Nic Dubhghaill

Maria de Ergadia (died 1302) was a fourteenth-century Scottish noblewoman. She was Queen consort of Mann and the Isles and Countess of Strathearn.

Maria was a daughter of Eóghan Mac Dubhghaill, Lord of Argyll (died c.1268×1275), and thus a member of Clann Dubhghaill.

She was married four times. Her successive husbands were: Magnús Óláfsson, King of Mann and the Isles (died 1265),Maol Íosa II, Earl of Strathearn (died 1271), Hugh, Lord of Abernethy (died 1291/1292), and William FitzWarin (died 1299). These unions appear to reveal the remarkable wide-ranging connections enjoyed by Clann Dubhghaill.

It is unknown when Maria married her first husband. Her father last appears on record in 1268, when he witnessed a charter of Maol Íosa. It is possible that this could have been about the time when Maria married him. Within the same year, Maol Íosa is recorded to have owed a debt of £62 to the Scottish Crown, a sum that could have been incurred as a result of the marriage. 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. Throughout much of her life, Maria bore the title Countess of Strathearn.

Maria and her third husband, Hugh, had several children. One such child of her and Hugh was Alexander. After Hugh's death, Maria was summoned to appear before parliament to answer regarding Alexander's rights to various lands. In 1292, Maria was indebted to Nicholas de Meynell for 200 marks, part of the tocher of a daughter of hers. When Maria rendered homage to Edward I, King of England in 1296, she styled herself "la Reẏne de Man". In 1302, Maria died in London amongst her Clann Dubhghaill kin, and was buried along with William in London's Greyfriars church. An effigy of her second husband, and perhaps Maria herself, lies in Dunblane Cathedral.

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