Complex sentence: Many of the rooms contain large tapestries on the panelled walls depicting historical figures and scenes, some of which designed by Peter Paul Rubens, whose original sketches for the first and last subjects of the tapestries are on display in the Munich Gallery.
Split into simpler sentences: Many of the rooms contain extremely large tapestries on the panelled walls depicting historical figures and scenes, some of which are known to have been designed by Peter Paul Rubens. Rubens's original sketches for the first and last subjects of the tapestries are on display in the Munich Gallery.