Nyitra County
Mog was a loyal supporter of Béla III of Hungary. He had pledged to participate in a crusade to the Holy Land, but he had been allowed to defer the fulfillment his vow. He served as Judge royal () between 1185 and 1186. He was appointed "ispán" of Nyitra County in 1188. He became Palatine at first even the reign of Béla III, assuredly from 1192 to 1193, however according to non-authentic royal charters he already held the office from 1188 and was also mentioned as Palatine in a false diploma issued in 1194. Beside that high-rank position, Mog also functioned as "ispán" of Bács County between 1192 and 1193. Thus he was the first known incumbent Palatine who also received an ispánate in addition to the dignity.