The Duchy of Merania was a historical territory in Central Europe, primarily located in what is now modern-day Croatia and parts of Slovenia. Established in the late 12th century, it was part of the larger Holy Roman Empire and was known for its strategic position along trade routes and its diverse cultural influences. Merania was ruled by various noble families, with the Counts of Merania being the most notable. The duchy experienced periods of prosperity and conflict, often influenced by the political dynamics of neighboring regions. It eventually declined in importance and was absorbed into larger political entities by the late Middle Ages.