Egidius Monoszló
[8] He interceded at his lord in the same year to grant nobility for the members of the Dobra kindred, his faithful castle warriors in Bács County for their bravery and merits in the civil war.
Egidius participated in the campaign and led Stephen's army to successfully besiege and capture Tirnovo (in one of the five major battles), also plundering the surrounding areas.
Among the eight office-holders of high dignities, he was one of those four lords – alongside the influential brothers, Peter I and Matthew II Csák, and Egidius' distant relative Nicholas Monoszló – who entered government service after years of anti-King position and participation in the war against Béla.
[2][16] When the Ban of Slavonia, Joachim Gutkeled, turned against Stephen V and kidnapped his ten-year old son and heir, Ladislaus in the summer of 1272, a new era had begun in Medieval Hungary.
Egidius Monoszló immediately laid siege in late August to the Dowager Queen's palace in Székesfehérvár to "rescue" Ladislaus from the rival baronial group's influence.
As an Austrian chronicler wrote, Egidius, "fear of the Queen's revenge", fled to Pressburg (today Bratislava, Slovakia), alongside his brother, Gregory.
The Monoszló brothers were granted the Austrian castles of Laa, Stockerau, Korneuburg and Kreuzenstein, in addition to annual appanage of 2,000 marks by Ottokar, who also commissioned them to administrate Pressburg and the adjacent forts.
[20][21] This favorable treatment infuriated Henry Kőszegi, who, as a former ally of the late Béla IV, had spent the last two years in exile at Ottokar's court in Prague.
[22] Taking advantage of the internal political crisis, Ottokar's Austrian and Moravian troops invaded the borderlands of Hungary in April 1273, using the Pressburg region as a march route.
Alongside Denis Péc and Joachim Gutkeled, Egidius defeated a Moravian army at the walls of Detrekő Castle (today ruins near Plavecké Podhradie, Slovakia) in October, which fort was unsuccessfully besieged by Ottokar's troops.
Egidius again elevated to the position of Master of the treasury around September 1274,[31] in those days when Peter Csák, defeated the united Kőszegi–Gutkeled forces near Polgárdi, where the most notorious pre-oligarch Henry Kőszegi was killed in the battle.
This meant the Csák group's anew fall from grace,[32] and Egidius lost his office of Master of the treasury in early June 1275, replacing by Joachim Gutkeled himself.
[31] Both Egidius and Gregory lost all political influence for uncertain reasons after 1275, as they had never hold any dignities after that, despite the fact that the Csák group was able to return to govern the realm even at the end of the year.
Historian Bálint Hóman claimed their violent nature made them incapable of compromise, but it is plausible they became political victims of the feudal anarchy's turbulent machinations of power.
[2] Egidius was among the many Hungarian barons and prelates who took part in the peace negotiations at Pressburg between King Andrew III of Hungary and Duke Albert of Austria to conclude the Austrian–Hungarian War in August 1291.
As he had no legitimate heirs, he made his first will and testament in 1298, when formally adopted his maternal relatives from the gens Bő, Peter, Count of the Székelys from 1294 to 1300, and Michael, who later served as Archbishop of Esztergom between 1303 and 1304.
[6] In 1308, Egidius changed his last will and testament, when his son-in-law, Nicholas Aba and his brothers (John, James and Peter) from the Nyék branch were granted Darnóc.
Historian Pál Engel claimed Egidius participated in that royal campaign, belonging to Charles' entourage, where waged war against oligarch Matthew III Csák, who ruled de facto independently the north-western counties of Hungary.
