He simultaneously functioned as chancellor and provost of Fehérvár from 1207 to 1209. In this capacity, he was a supporter of the so-called "new institutions", a new policy for royal grants introduced by Andrew. While recording the preliminaries of the royal charters throughout 1208 and 1209, Robert characterized this reform as "the best measure of a royal grant is its being immeasurable." That sentence reflects Robert's knowledge of Novellae Constitutiones (one of the four parts of the Roman law), where the same phrase appears regarding the donations of the churches.
