Bořivoj I (Czech pronunciation: [ˈbor̝ɪvoj], Latin: Borzivogius, c. 852 – c. 889) was the first historically documented Duke of Bohemia and progenitor of the Přemyslid dynasty. His reign over the Duchy of Bohemia is believed to have started about the year 870, but in this era Bohemia was subordinated to Great Moravia. One of the most important clues to the approximate time of his accession is the contemporary Frankish chronicle Annales Fuldenses, which mentions several West Slavic princes in the year 872, among them one Goriwei, who may be identical with Bořivoj.
HistoryLayer draws the world as it was in any year from 123,000 BCE to
2026. Move the slider and the borders redraw for that year; the map
carries 23,890 events, 12,790 people, 837 wars and 13,183 cities, each
one readable in place. Signing in is optional and lets you keep what
you find.