Alongside other lower nobles from Eastern Hungary and Transtisia, for instance Michael Balogsemjén, Rubinus Hermán and Mizse, he committed to supporting the efforts of King Ladislaus IV ("the Cuman"). Hungary's central government lost power because the prelates and the barons ruled the kingdom independently of the monarch. In order to eliminate the powerful barons' influence over the royal council, Ladislaus managed a self-coup in September 1286, expelling members of the Kőszegi–Borsa baronial group from the government body. Neglecting the Kőszegis' rival, the Széplak branch of the Aba clan, represented by Amadeus and Peter, Makján's very distant relatives, Ladislaus IV appointed his own loyal soldiers and lesser nobles to the high positions. In addition, Ladislaus imprisoned his wife Elizabeth and granted all her revenues to his Cuman mistress.
During his autocratic attempt, Ladislaus made Makján Aba as Palatine of Hungary. Beside that, he was also appointed ispán of Sopron, Moson and Somogy counties. However these titles were purely nominal as the rebellious and oligarchic Kőszegi family ruled de facto independently the western parts of Transdanubia, including the aforementioned three counties by then. Makján was mentioned in these four capacities only in a single document issued in Sárospatak on 13 October 1286. Accordingly, Makján summoned a "general assembly" (general congregatio) prior to that for the local nobles in Zemplén County, the ancient seat of the Aba kindred, at the command of the king. There Makján judged over a homicide case between two nobles. It is plausible that Makján held his dignity until spring 1287, when the Kőszegi troops defeated Ladislaus' army at the river Zsitva (Žitava). The monarch was forced to reconcile with the barons thereafter; Ivan Kőszegi was made Palatine by June.
After his brief and ephemeral role in the national government, Makján lost all political influence and relapsed into the status of lower nobility. His lord and patron, Ladislaus IV spent the last years of his reign wandering from place to place, staying among his Cuman subjects. When Archbishop Lodomer absolved Ladislaus on condition that the king would live in accordance with Christian morals, the king also promised to dismiss his "perfidious, disgraceful Catholic advisors", which perhaps referred to Makján, along with other nobles. Makján was last mentioned by contemporary records in August 1288, when he and his brother Philip were present as witnesses during a determination of borders of three lands. Makján still used the honorary title of palatine in the document.
