 The Restoration of the monarchy in 1660 saw the first period of significant change to Windsor Castle for many years . The civil war and the years of the Interregnum had caused extensive damage to the royal palaces in England . At the same time the shifting " functional requirements , patterns of movement , modes of transport , aesthetic taste and standards of comfort " amongst royal circles was changing the qualities being sought in a successful palace . Windsor was the only royal palace to be successfully fully modernised by Charles II in the Restoration years . 
