Complex sentence: He was buried in the local cemetery in Bestwina, a countryside belonging to his family and the place where he and his family moved into a palace in 1933 after the death of his father, Karl Stefan.
Split into simpler sentences: He was buried in the local cemetery in Bestwina, a countryside plot belonging to his family. Bestwina was also the location of the palace where he and his family moved to in 1933, after the death of his father, Karl Stefan.