Complex sentence: Margaret of England, Queen Consort of Alexander III of Scotland (b. September 29,1240-d. February 26,1275) was the daughter of Henry III of England and his wife, Eleanor of Provence, and was born at Windsor Castle.
Split into simpler sentences: Margaret of England (September 29,1240-February 26,1275) was Queen Consort of Alexander III of Scotland. She was a daughter of Henry III of England and his wife, Eleanor of Provence, and was born at Windsor Castle.