Complex sentence: The neighbouring Chateau d'Angers had been used as a French military base for many years, but transferred to civilian use after the Second World War and in 1954 the tapestry was moved there, to be displayed in a new gallery designed by French architect Bernard Vitry.
Split into simpler sentences: The neighbouring Chateau d'Angers had been used as a French military base for many years, but transferred to civilian use after the Second World War. In 1954 the tapestry was moved there, to be displayed in a new gallery designed by French architect Bernard Vitry.