Complex sentence: Geddes Hyslop's remodelling of the house in 1934, has created a series of seemingly meaningless and similar reception rooms, designed to accommodate large house parties, in some cases (including the Dutch Room) smaller rooms were amalgamated and lost.
Split into simpler sentences: Geddes Hyslop's remodelling of the house in 1934, has created a series of seemingly meaningless and similar reception rooms, designed to accommodate large house parties. In some cases (including the Dutch Room) smaller rooms were amalgamated and lost.