Ladislaus (IV) from the kindred Kán () was a Hungarian lord, a member of the gens Kán (clan) and the son of oligarch Ladislaus III Kán, who was the de facto ruler of Transylvania from 1295 until his death.

After his father's death in 1314 or 1315, Ladislaus IV declared himself the Voivode of Transylvania, a title even acknowledged by King Charles I of Hungary in a charter dated 12 August 1315.Kristó 2003, p. 232. The monarch’s appointed voivode, Nicholas Pok, was unable to take office. However, Ladislaus IV's power was soon challenged by another rebellious lord, Mojs II Ákos, the son-in-law of James Borsa.Bárány 2011, p. 91. Mojs II defeated Voivode Pok, who had led a royal campaign against the Transylvanian oligarchs.

In 1317, the Kán brothers suffered a significant defeat in the Battle of Déva. By 1321, Charles I’s newly appointed voivode, Thomas Szécsényi, captured Csicsó (present-day Ciceu-Corabia, Romania), which was the last stronghold of Ladislaus Kán's sons.Bárány 2011, p. 105. Despite this, the Kán brothers (Ladislaus IV and his brother Ladislaus V) remained a serious threat to royal authority through continuous looting and raids until the late 1320s.Bárány 2011, p. 114. They also enjoyed the support of Basarab I of Wallachia.Bárány 2011, p. 116.

Ancestors

References

Sources Bárány, Attila (2011). "Debreceni Dózsa küzdelme a bihari oligarchákkal [Dózsa Debreceni's Struggle with Oligarchs in Bihar]". In Bárány, Attila; Papp, Klára; Szálkai, Tamás. Debrecen város 650 éves. Várostörténeti tanulmányok. University of Debrecen, Történelmi Intézet. pp. 75–126. Kristó, Gyula (2003). Early Transylvania (895–1324). Lucidus Kiadó. .