Lennart Bernadotte, Count of Wisborg, is considered the founder of the “Insel Mainau” tourism enterprise. Born the Prince of Sweden in 1909, after his morganatic marriage, he took over the administration of the island from his father, Prince Wilhelm of Sweden. He gradually developed the former summer residence of his great-great-grandfather Grand Duke Frederick I of Baden into one of the major tourism businesses on Lake Constance. In addition, he was the first president of the Lindau Nobel Laureate Meetings, and for many years served as president of the German Horticulture Society of 1822.