The Moravians (Old Slavic self-designation Moravljane, Slovak: Moravania, Czech: Moravané) were a West Slavic tribe in the Early Middle Ages. Although it is not known exactly when the Moravian tribe was founded, Czech historian Dušan Třeštík claimed that the tribe was formed between the turn of the 6th century to the 7th century, around the same time as the other Slavic tribes. In the 9th century Moravians settled mainly around the historic region of Moravia and Western Slovakia, but also in parts of Lower Austria (up to the Danube) and Upper Hungary.