An indication that his art and person were held in extraordinarily high regard is a document from 1435 in which the Duke scolded his treasurers for not paying the painter his salary, arguing that van Eyck would leave and that he would nowhere be able to find his equal in his "art and science.
Njegova letna plača je bila precej visoka in se je podvojila dvakrat v prvih nekaj letih, pogosto pa je dobil še posebne nagrade.