John (; died 1273)Markó 2006, p. 410. was a Hungarian distinguished nobleman, who served as voivode of Transylvania in 1273, during the reign of Ladislaus IV of Hungary.Zsoldos 2011, p. 39.Engel 2001, p. 382.Treptow, Popa 1996, p. lvi.

References

Sources Engel, Pál (2001). The Realm of St Stephen: A History of Medieval Hungary, 895-1526. I.B. Tauris Publishers. . Markó, László (2006). A magyar állam főméltóságai Szent Istvántól napjainkig – Életrajzi Lexikon ("The High Officers of the Hungarian State from Saint Stephen to the Present Days – A Biographical Encyclopedia") (2nd edition); Helikon Kiadó Kft., Budapest; . Treptow, Kurt W. & Popa, Marcel (1996). Historical Dictionary of Romania. Scarecrow Press, Inc. . Zsoldos, Attila (2011). Magyarország világi archontológiája, 1000–1301 ("Secular Archontology of Hungary, 1000–1301"). História, MTA Történettudományi Intézete. Budapest.