Margaret of England (29 September 1240 – 26 February 1275) was Queen of Alba (Scotland) by marriage to King Alexander III.

Margaret was the second child of King Henry III of England and his wife, Eleanor of Provence,[1] and was born at Windsor Castle.

Margaret's first appearance in historical record comes when she was three years old, when she and her brother, the future Edward I, took part in an event in London.

Queen Margaret complained to her father's envoys that she was kept as a prisoner without the permission to travel, and that she was not allowed to see her spouse nor be intimate with him.

In 1257, Margaret and Alexander were captured and held prisoner by the Comyn family, who demanded the expulsion of all foreigners from Scotland.

She visited England in 1260–61, to give birth to her daughter Margaret, and 1269, to attend the translation of Edward the Confessor's relics to Westminster Abbey, both times in the company of Alexander.

It was said that Margaret was responsible for the death of a young courtier, who reputedly had killed her uncle by marriage Simon de Montfort at the Battle of Evesham.