Vladislaus I, Duke of Bohemia

Vladislaus I ( _cs. Vladislav; 1065–1125), duke of Bohemia from 1109 to 1117 and from 1120–April 12, 1125.

Vladislav I was a son of Duke, later King, Vratislav II of Bohemia by his second wife Swatawa, a daughter of Casimir I of Poland. Together with his cousin Svatopluk, Vladislav expelled his brother Bořivoj II from Bohemia in 1107. In 1109 Svatopluk died, and Vladislav I succeeded as duke of Bohemia. Bořivoj II returned from exile with the support of Prince Bolesław III Wrymouth of Poland, but was defeated and imprisoned by Vladislav in 1110, who exiled him into the custody of his ally, Emperor Henry V.

In spite of his victory, Vladislav I remained under Polish pressure, and was forced to recognize a younger brother, Soběslav, as subordinate ruler of Moravia in Znojmo (Znaim) from 1111. In 1117 Vladislav I formally abdicated in favor of Bořivoj II but retained much of the actual power. In 1120 Bořivoj was deposed again and endowed with Znojmo, while Vladislav resumed the throne, which he held until his death in 1125.

Vladislav I ruled in a difficult time with considerable success. Although he continued to acknowledge the suzerainty of the Holy Roman Empire, he weathered the interventions of Poland into Bohemian affairs, conflicts with his kinsmen in Moravia, and undertook offensive campaigns against both Poland and Austria. In 1110–1111 Vladislav accompanied Emperor Henry V on his Italian expedition, and he encouraged continued German settlement into Bohemia's border regions.

=Family= By his wife Richeza of Berg (- September 27 1125), daughter of Count Henry I of Berg, Vladislav I had four children:
* Svatava
* Vladislav II of Bohemia (c.1110 - January 18 1174), King of Bohemia
* Děpolt (- August 1167)
* Jindřich

3gen
SLF=Vladislaus
FAT=Vratislaus II of Bohemia
FAF=Bretislaus I of Bohemia
FFF=Oldrich of Bohemia
FFM=Božena
FAM=Judith of Schweinfurt
FMF=Henry of Schweinfurt
FMM=Gerberga, Margravine of the Nordgau
MOT=Świętosława I of Bohemia
MOF=Casimir I of Poland
MFF=Mieszko II Lambert
MFM=Richeza of Lotharingia
MOM=Dobroniega of Kiev
MMF=Vladimir I of Kiev
MMM=???

=References=
* A. Thiele, "Erzählende genealogische Stammtafeln zur europäischen Geschichte", Band I:1, Fischer, 1991.