She was the daughter of Archibald of Nariston and Bonshaw (dead before May 1507), and his wife Christian Mure (still living on 28 January 1523).
[1] Marion and James IV had two children who reached adulthood: Alexander, Archbishop of St Andrew, born about 1490, and Catherine, who married James Douglas, 3rd Earl of Morton.
[2] Marion also had an illegitimate son with James Hamilton, 1st Earl of Arran.
Their son James Hamilton of Finnart was born illegitimate about 1495 but was later legitimated in 1512.
Her relationship with the king was linked with the rise and fall of Angus's influence at the court.