Kurszán (died 904), the Magyar (Hungarian) sacral prince, was a partner ruler besides Árpád till his death. He had a crucial role in the Hungarian Conquest (Honfoglalás). In 892/893 together with Arnulf of Carinthia he attacked Great Moravia to secure the eastern borders of the Frankish Empire. Arnulf gave him all the captured lands in Moravia. Kurszán also occupied the southern part of Hungary that had belonged to the Bulgarian Kingdom. He entered into an alliance with Leo VI the Wise Byzantine emperor after realizing the country's vulnerability from the south. Together they surprisingly defeated the army of Simeon I of Bulgaria.
In the summer of 904 Louis the Child invited Kurszan and his entourage to negotiate at the river Fischa. All were murdered there. From this point Árpád became the only ruler and occupied some of the territory of the former partner ruler. The Kurszan family settled near Óbuda where they built Kurszánvára (meaning Castle of Kurszán). After Kurszán's death, they lived under the name Kartal.
See also 
- Acta historica Academiae Scientiarum Hungaricae, Volume 9, Magyar Tudományos Akadémia, 1963, p. 353
- Mária Steiner, Museums in Budapest: Hungarian National Museum, Museum of Fine Arts, Hungarian National Gallery, Museum of Applied Arts, Ethnographical Museum, Budapest Historical Museum, Corvina Kiadó, 1985, p. 64
- Györffy, György (1959). "Tanulmányok a magyar állam eredetéről". Budapest: Akadémiai Publishing Company.
- Timothy Reuter; Rosamond McKitterick (2005). The New Cambridge Medieval History. Cambridge University Press. ISBN 0-521-36447-7.
- Andrew L. Simon, Istvan Lazar (2001). Transylvania: A Short History. ISBN 1-931313-21-0.
- "Conquest, Settlement, and Raids (History of Transylvania)". Institute of History of the Hungarian Academy of Sciences, joint publication with the Hungarian Research Institute of Canada, a research ancillary of the University of Toronto. 2001.
- "Gyula and the Gyulas (History of Transylvania)". Institute of History of the Hungarian Academy of Sciences, joint publication with the Hungarian Research Institute of Canada, a research ancillary of the University of Toronto. 2001.
- Sándor Katona: Árpád (Koronás Kerecsen Publishing Co., 2007)