In 1339, the estates of Neszmély returned to the Crown, when the holder family became heirless.
Henceforth his name appeared as Nicholas Neszmélyi ("of Neszmély") in contemporary sources.
According to the land survey, he obtained the "estate of Neszmély with arable lands, shrubs, ferry, water and land tariffs back and forth, fishing rights in the Danube, two islands, by name Neszmélyi Island and Für Island until the middle of the Danube", along with his cousins, Hancko and Matthias.
He placed great emphasis on development of educational level and academic skills of the clergy.
Due to his work, the first university of Hungary was founded in Pécs in 1367, during the period of his successor, William of Koppenbach.