At 31 years old, Margaret of Navarre was the most powerful woman in Europe and the Mediterranean, and she successfully navigated the Kingdom of Sicily from 1166 to 1171, maintaining the progressive constitutional laws her father-in-law, Roger II, had established. Yet until now, historians barely mention her. Experience Sicily's Allison Scola talks with historian and author Jacqueline Alio about the challenges and triumphs of Queen Margaret, reflecting nearly two decades of research.