Märtha Louise is a Norwegian princess, born on September 22, 1971. She is the daughter of King Harald V and Queen Sonja of Norway. Märtha Louise is known for her work in alternative medicine and has authored several books. She has also been involved in various charitable activities and organizations. In addition to her royal duties, Märtha Louise has pursued a career in the arts, including theater and writing. She is the founder of the Märtha Louise Foundation, which focuses on promoting health and well-being. Märtha Louise is also known for her public appearances and engagement with the Norwegian community.