SvatoplukmCzech Means "sacred people", derived from the Slavic elements svętŭ "sacred, holy" and pŭlkŭ "people, host, army". Svatopluk the Great was a 9th-century ruler of Great Moravia, a region centered around the modern Czech Republic and Slovakia.
YaropolkmRussian (Rare) Derived from the Slavic elements jarŭ "fierce, energetic" and pŭlkŭ "people, host". This name was borne by two rulers of Kievan Rus (10th and 12th centuries).