The cult of the Danubian Horseman is a riddle to researchers and can still only be considered a mystical cult.
In general, the cult was widespread along the Danubian Limes but mostly in the Roman provinces of Pannonia Inferior, Moesia Superior and Dacia. Most often, the cult is interpreted as having a local origin, but it also features influences from oriental religions and the Dioscuri, Castor and Pollux.
Digital Maps of the Ancient World 