Fratris Felicis Fabri was a German theologian and historian who wrote extensively on the history of the Ulm region. His Tractatus de Civitate Ulmensi is a detailed account of the city's origins, organization, citizens, and government during the 15th century. The book offers valuable insights into the political and social history of the region. This work has been selected by scholars as being culturally important, and is part of the knowledge...