Ottokar I of Bohemia (b. 1155)
Ottokar I (Czech: Přemysl I. Otakar; c. 1155 – 1230) was Duke of Bohemia periodically beginning in 1192, then acquired the title King of Bohemia, first in 1198 from Philip of Swabia, later in 1203 from Otto IV of Brunswick and in 1212 from Frederick II. He was a member of the Přemyslid dynasty.