1217–1247) was a powerful Hungarian baron, who held several secular positions during the reign of kings Andrew II and Béla IV.

He was first mentioned as Master of the horse (Latin: maresc[h]alcus in 1217, while Julius I served as Palatine of Hungary in the royal court of Andrew II.

[9] The elderly Andrew II appointed him Judge royal for the second time in 1234, he held that dignity until the next year.

[10] Andrew II died in September 1235, which had serious consequences for either the private life and political career of Ladislaus.

The financial expert Denis, son of Ampud was blinded, while Ladislaus' father Julius I was imprisoned and died in captivity in 1237.

When the Mongols were chasing after the episcopal troops of Bartholomew le Gros, the Bishop of Pécs, Ladislaus and his soldiers saved the life of the prelate.

[5] As Roger of Torre Maggiore's Epistle to the Sorrowful Lament writes, "[...] When some Tatars sent their horses at full gallop after them [Bartholomew's troops], ispán Ladislas, who was hastening to the king with his troop under unfurled flags, suddenly came upon them, knowing nothing of what had happened.

The bishop, recognizing the Hungarian flags, turned to the ispán, and the Tatars, noticing the great numbers, retreated and pursued others.