An analysis of the functioning of the Dutch monarchy in the 20th century is hardly possible by lack of documents. For the study of the contacts between the Head of State and the Cabinet-ministers a scholar needs the documents from the Cabinet of the Queen and from the Royal Archives. The archives of the Cabinet of the Queen are now accessible up to the Second World War, but the Royal Archives are closed from 1898. The Dutch people has a sympathy for the dynasty (Orange-Nassau) and by that a deduced sympathy for the monarchy. There was no real criticism on the functioning of the following queens Wilhelmina, Juliana and Beatrix. Tbe Heads of State accomodated themselves to the political and social developments. By that the monarchy lengthened its life. The formation of a new Cabinet is an essential task of the Queen. Wilhelmina (a rather authoritarian character) did not hide her personal views but respected carefully the constitutional framework and already in the beginning of this century she asked the consulted political leaders to confirm their advices by letter. The possibility to play a role seems to be more limited since 1945.