Frederick, Duke of Bohemia
| Frederick of Bohemia | |
|---|---|
| Duke of Bohemia | |
 Seal of Duke Frederick | |
| Duke of Bohemia | |
| Reign | 1172 – 1173 |
| Predecessor | Vladislav II of Bohemia |
| Successor | Soběslav II |
| Reign | 1178 – 1189 |
| Predecessor | Soběslav II |
| Successor | Conrad II |
| Spouse | Elisabeth of Hungary |
| Issue |
Vratislaus Helena Sophia Ludmilla of Bohemia Olga Margaret |
| House | Přemyslid dynasty |
| Father | Vladislav II of Bohemia |
| Mother | Gertrude of Babenberg |
| Born | c. 1142 |
| Died | 25 March 1189 (aged 46–47) |
| Religion | Roman Catholicism |
Frederick (Czech: Bedřich) (died 25 March 1189) was the duke of Olomouc from 1164 and then duke of Bohemia from 1172 to 1173 and again from 1178 to his death. He was the son of King Vladislaus II, who abdicated in 1172 in his favour. However, he could not hold on to his principality, because he was approved of by neither the national diet nor the emperor, and was deposed in September the year following by the emperor at the Diet of Hermsdorf. The Emperor Frederick I, godfather and namesake of Frederick, nominated Oldřich, son of Soběslav I, but he renounced the throne in favour of Soběslav II, sympathetic to the peasantry, but antagonistic to both nobles and emperor.
Frederick allied with the emperor and defeated Soběslav at the battles of Lodenice and Prague. The emperor recognised Frederick as an imperial prince, but he also raised the bishop of Prague, Henry Bretislaus, to princely status, making him a direct vassal of the emperor. He also appointed Conrad Otto margrave over Moravia and thus divided the duchy into three parts dependent on him. When Frederick, who was practically a puppet of the emperor, died, he was succeeded by Conrad Otto.
By his marriage to Elizabeth, daughter of Géza II of Hungary, he had the following issue:
- Helena (b.1158), affianced to Peter, son of Manuel I Komnenos, in 1164
- Sophia (died 25 May 1185), married Albert, Margrave of Meissen
- Ludmilla (died 14 August 1240), married Adalbert VI, count of Bogen, and then Louis I, Duke of Bavaria
- Vratislaus (d.1180)
- Olga (fl.c.1163)
- Margaret (died 28 August 1167)
Ancestry
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| Regnal titles | ||
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| Preceded by Vladislaus II |
Duke of Bohemia 1172–1173 |
Succeeded by Soběslav II |
| Preceded by Soběslav II |
Duke of Bohemia 1178–1189 |
Succeeded by Conrad II |
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