John Kőszegi
[2] After the death of his father in the spring of 1310, John inherited his large-scale and contiguous domains in Upper Slavonia – e.g. Krapina (Korpona), Belec, Kostel, Vrbovec (Orbolc), Oštrc (Oszterc), Đurđevac, Koprivnica (Kapronca) – and Southern Transdanubia – e.g. Somogyvár, Döbrököz, Dombóvár and Kőszeg (Batina) –, becoming one of the most powerful lords in the Kingdom of Hungary, who administered his province independently of the monarch.
[3] Initially, John continued his father's latest policy and nominally supported the efforts of Charles I, who became the incontestable King of Hungary after years of civil war fought for the throne.
In the following years, there are several reports of his committed crimes and dominations against his neighbors, when aimed to further spread his influence over the remaining portions of Slavonia and the eastern counties of Southern Transdanubia.
[6] Around 1314, John also besieged and occupied Alsólendva in southern Zala County (today Lendava, Slovenia) from Stephen Hahót or his son Nicholas (formerly historians János Karácsonyi and Erik Fügedi incorrectly identified Ivan Kőszegi as belligerent and set 1292 for the date of the siege).
[10] Egidius Monoszló made his last will and testament in March 1313, not long before his death; according to his intention, his widow and minor orphan daughters were supposed to inherit the whole Atyina lordship (today Voćin in Croatia).
[12] According to historian Pál Engel, John Kőszegi's behavior regarding the heirdom of Atyina, among others, contributed to the open confrontation between Charles I and the oligarchic powers, which reached its peak at the general diet in the autumn of 1314.
[11] In contrast, historian Gyula Kristó questioned Engel's analysis: there is no information that the diet has been held in 1314, which proved to be a peaceful year without serious military campaigns.
Pál Engel argued several familiares of John Kőszegi, including Nicholas Felsőlendvai, Alexander Ozorai and Stephen Máréi, had departed from his allegiance before the war due to Charles' successful persuasion and bribery, which resulted the monarch's decisive victory.
Kristó argued the aforementioned minor clashes there occurred in the second half of 1316 (and not in 1314, as Engel proposed), when Mikcs Ákos captured seventeen servants of the Kőszegis, who tried to destroy the village of Križevci.
Charles I, who managed three other campaigns against the oligarchs – including Andrew Kőszegi – at the same time, sent his army, led by Demetrius Nekcsei, Paul Garai and Stephen Máréi, against the insurgents in June 1317.
John Babonić launched a counterattack too; he defeated the Kőszegis in two battles and also captured several castles, including Orahovica, Monoszló (today Podravska Moslavina, Croatia), Polosnica, Međurača (Megyericse) and Zdenci (Izdenc) by the end of the year.
[18] Withdrawing to the northwestern portions of Slavonia, John Kőszegi was able to retain his lands and forts only in Varaždin County and Zagorje, where from his father, Henry II extended his power over the decades.
[14] Nicholas Ludbregi recaptured Béla Castle for the Priory of Vrana by the end of the year, and finally retook his seat Ludbreg from the Kőszegi brothers in early 1320.
