Ladislaus I (also spelled Vladislav I or Władysław I) may refer to: *

Ladislaus I of Hungary Ladislaus I (, , , ; 1040 – 29 July 1095), also known as Saint Ladislas, was King of Hungary from 1077 and King of Croatia from 1091. He was the second son of King Béla I of Hungary and Richeza of Poland, Queen of Hungary, Richeza (or Adela ...

(1040–1095), King of Hungary * Ladislaus I Herman (1040–1102), Duke of Poland * Vladislaus I, Duke of Bohemia (–1125), Duke of Bohemia * Władysław II the Exile (1105–1159), Duke of Silesia, sometimes known as ''Ladislaus I the Exile'' * Vladislaus II, Duke of Bohemia (–1174), who reigned as King Vladislaus I of Bohemia * Vladislav I of Serbia, King of Serbia (1234–1243) *Ladislaus I of Opole (1246–1281), Duke of

Opole Opole (; ; ; ) is a city located in southern Poland on the Oder River and the historical capital of Upper Silesia. With a population of approximately 127,387 as of the 2021 census, it is the capital of Opole Voivodeship (province) and the seat of ...

*Wladislaus I of Oswiecim ( – ), Duke of

Oświęcim Oświęcim (; ; ; ) is a town in the Lesser Poland Voivodeship in southern Poland, situated southeast of Katowice, near the confluence of the Vistula (''Wisła'') and Soła rivers. Oświęcim dates back to the 12th century, when it was an im ...

* Władysław I the Elbow-high (1261–1333), King of Poland (also known as ''Ladislaus the Short'', or ''Władysław I Łokietek'') * Vladislav I of Wallachia (died 1377), Prince of Wallachia (also known as ''Vlaicu-Vodă'') * Ladislaus I of Naples (1377–1411), King of Naples

See also