Domitian of Carantania is an important figure in the early medieval history of the Eastern Alps, particularly in the region known today as Slovenia. Living during the 8th and 9th centuries AD, Domitian played a crucial role in the Christianization and political development of Carantania, an ancient pagan Slavic principality. His life and deeds are enveloped in a mix of historical facts, legends, and ecclesiastical records, offering a fascinating glimpse into the complexities of early medieval European history and the origins of Slovenia as well.