13 14, she married duke of burgundy Robert II le Pieux and became Mrs. duke of burgundy. Margaret is deeply loved and respected by the people in the Principality of Burgundy, and she also has a voice in politics. Together with her husband, she made Burgundy an ally of France, hostile to England, and promoted the economic and cultural development of Burgundy.
However, in 1322, Margaret thought that her husband ignored her opinion when dealing with political affairs, so she conspired with her mother and brother Louis Xi to overthrow the regime of Robert II le Pieux. Robert II le Pieux was arrested and imprisoned for ten years, and was not released until Margaret died.
Margaret is a famous philanthropist. She supported many educational and charitable organizations in Burgundy and made some contributions in the medical field. She also founded a cloth factory named Mary in 1326, which provided employment and economic support for local residents.
Margaret gave birth to a son John on 13 15, and then gave birth to three daughters. She died in Burgundy in 13 15, at the age of 25. She was buried in a monastery in Burgundy.