Complex sentence: Skule, who had been another of the candidates, was now given Trøndelag as his part of the kingdom, and king Håkon took over more and more of the real royal power himself.
Split into simpler sentences: Skule, who had also been one of the candidates, was now given Trøndelag as his part of the kingdom. King Haakon took over more and more of the real royal power himself.