Hausser, who had been the original architect for the project, lost his influence as the younger de Thurah and Eigtved took on larger assignments in the castle project. In 1738 the king set up a royal buildings commission that would lead the continued work on the castle. The commission would be led by State Minister Count Johan Sigismund Schulin (1694-1750). At the same time Eigtved and de Thurah switched areas of responsibilities, where de Thurah gave up Copenhagen and the island of Zealand, in exchange for Eigtved's Jutland Peninsula.