Mary was born at Stirling Castle on 13 May 1453, the eldest daughter of James II of Scotland and Mary of Guelders. She had five siblings, including James III, who ascended the Scottish throne in 1460 upon their father's accidental death by an exploding cannon. Mary's mother died in 1463, leaving her an orphan at the age of ten.
Marriages and issue
Mary was married to her first husband, Thomas Boyd, Earl of Arran, when she thirteen years old before 26 April 1467. The Isle of Arran was given as her dowry upon her marriage. Law Castle in North Ayrshire was built for the couple. In 1467, Mary's husband Thomas was sent to Denmark to escort King James III's bride, Margaret of Denmark. During his absence, Mary's brother, the King, became alienated from Mary's husband by the enemies of the Clan Boyd who brought false charges of treason against Thomas and his father, Robert Boyd, 1st Lord Boyd. Mary, upon hearing that her husband was to be summoned before the king and Parliament to answer the charges, immediately went to the harbour of Leith when Thomas' ship docked in July, to forewarn him. Mary and Thomas then promptly sailed to Denmark. On 22 November 1469, Mary's husband was attained, and his title, honours, and estates were forfeited to the crown. She later returned to Scotland in an attempt to have her husband cleared of all charges laid against him. Upon her arrival in Scotland, her brother James detained her in custody at Dean Castle in Kilmarnock, until her marriage was annulled. Mary's marriage to Thomas was then declared void in 1473, and she was forced to marry James Hamilton, 1st Lord Hamilton. Thomas and Mary together had two children:
In early 1474, Mary married secondly as her second husband, James Hamilton, 1st Lord Hamilton, who was almost forty years her senior. They received a papal dispensation on 26 April 1476 thus legitimising the two children already born to them. Together James and Mary had three children:
Robert Hamilton, Seigneur d'Aubigny. He was born at Brodick Castle, Isle of Arran, Scotland. He died in 1543 in Torrence, Lanarkshire, Scotland, when he was 66 years old. According to some records, he married Campbell, the daughter of Campbell of Glaister, or Glacester, the niece of the Sheriff of Ayr . They had at least two children: Janet Hamilton, born in 1500, who wed Alexander Burnet, 4th Baron & 9th Laird of Leys; and Matthew Hamilton, born in 1512, who wed Jean Muirhead of Torrence.
Mary's son by her first husband Thomas, James Boyd, 2nd Lord Boyd of Kilmarnock, was killed at the age of fifteen by Lord Montgomerie, which ignited a feud that lasted for over seventy years. Lady Margaret Boyd, her daughter by Thomas, lived to the age of forty-eight. Although she was married twice, neither marriage produced children. Mary died in 1488 at the age of thirty-five. Due to their proximity to the throne, Mary's descendants, the Hamiltons of Arran and the Stewarts of Lennox, would obtain considerable power, and play conspicuous roles in 16th century Scottish politics; especially affecting the life and reign of Mary, Queen of Scots, the great-granddaughter of her brother, James III.
