Bohemia's beginnings started with Svatopluk I of Great Moravia giving Borivoj I control of the of the soon-to-be Bohemian lands. Even early in his career as the first duke, his kingdom faced war as he supported Svatopluk I during his war against Louie the German and the Eastern Franks. Also early in his career, he faced controversy from fellow elites and had to involve himself in more war to maintain his power and position. Beginnings aren't easy!
Great Moravia: Svatopluk I and Mojmir II (870-907)
The story of Great Moravia continues with the arrest of Svatopluk I's arrest. Becuase of Svatopluk's supposed death, the Moravians, in anger, elected Slavomir in his place until Svatopluk came back. After the death of Svatopluk II, his son Mojmir II took his place, after which the kingdom saw some hard times, including wars.