John Kőszegi

John Kőszegi (Hungarian: Kőszegi János; died after 1327) was a Hungarian influential lord in the early 14th century, who served as Master of the horse from 1311 until 1314. He inherited large-scale domains in Slavonia and Transdanubia in 1310. After 1314 or 1315, he became an ardent enemy of Charles I of Hungary, who defeated him in 1316 and 1317, resulting in the collapse of his province within months. He was the ancestor of the Tamási family.