The souvenir sheet issued by Slovakia in 2001 features four stamps with Princes of Great Moravia of the 9th century, Pribina, Rastislav, Kocel' and Svätopluk,  a map of Great Moravia and an archeological find, a shield depicting a falconer.
     Great Moravia was an empire existing in Central Europe between 833 and the beginning of the 10th century. The map on the souvenir sheet shows the extent of Great Moravia during the 9th century.