|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|
D?pold I of Jamnitz
|Father||Vratislaus II of Bohemia|
|Mother||?wi?tos?awa 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 Bo?ivoj II from Bohemia in 1107. In 1109, Svatopluk was killed during a campaign in Poland, and Vladislav I succeeded him as Duke of Bohemia. Bo?ivoj II returned from exile with the support of Prince Boles?aw 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, Sob?slav, as subordinate ruler of Moravia in Znojmo. In 1117, Vladislav I formally abdicated in favor of Bo?ivoj II, but retained much of the actual power. In 1120, Bo?ivoj 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.