|Duke of Bohemia|
|Reign||1109 – 1117, 1120 - 1125|
|Duke of Bohemia|
|Reign||1120 – 1125|
|Died||12 April 1125(aged 59–60)|
|Spouse||Richeza of Berg|
|Vladislav II of Bohemia|
Děpold I of Jamnitz
|Father||Vratislaus II of Bohemia|
|Mother||Świętosława of Poland|
Vladislav I was a son of Vratislaus II of Bohemia by his second wife Svatava, 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 was killed during a campaign in Poland, and Vladislav I succeeded him 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.
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. 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 1110–11, Vladislav accompanied Emperor Henry V on his Italian expedition, and he encouraged continued German settlement into Bohemia's border regions.
In 1115, the Benedictine abbey of Kladruby, west of Pilsen, was established, with Vladislav endowing the abbey with 25 manors and the lordship of Zbraslav. Although by 1117, he had enlarged the abbey with six monks and six lay brethren.
- Berend, Nora; Urbanczyk, Przemyslaw; Wiszewski, Przemyslaw (2013). Central Europe in the High Middle Ages:Bohemia, Hungary and Poland, c.900-c.1300. Cambridge University Press.
- Knoll, Paul W.; Schaer, Frank, eds. (2003). Gesta principum Polonorum:The Deeds of the Princes of the Poles. Central European University Press.
- Thompson, James Westfall (1926). "Medieval German Expansion in Bohemia". The Slavonic Review. 4, No. 12 March.
- Wihoda, Martin (2015). Vladislaus Henry: The Formation of Moravian Identity. Brill.
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