Laborec (ruler)
According to the Gesta Hungarorum by Bele Regis Notarius, Laborec was a Slavic ruler in the 9th century who was a vassal of Great Moravia. According to the Gesta Hungarorum, at the time of the Hungarian conquest of the Carpathian Basin around 896 Laborec opposed the conquest of Carpathian Ruthenia by Hungarian tribes led by Árpád.