The representatives at that time of the Bohemian and Moravian nobility signed two declarations in which they expressed their unconditional loyalty to Czechoslovakia and the Czech nation. The exhibition mainly consists of genealogical panels graphically depicting the signatories of the declarations and their families. The first declaration was signed by 12 members of the Czech Bohemian nobility, descendants of the former co-founders and bearers of Czech statehood. This took place on 17.9.1938 and the declaration was addressed to the President of the Czechoslovak Republic, Edvard Beneš. The second declaration, made in September 1939 and bearing the name Declaration of the Bohemian and Moravian nobility, was designated for his successor to the office of the presidency, Emil Hácha, and was signed by 85 representatives of 33 noble families. September 7, 2014 was the 75th anniversary of its publication. The individual panels in the exhibition will provide information about the history, ancestral background, settlements andmain characters of the family lines and individual families of each of the signatories of the second declaration. After the exhibition at Prague Castle it is to become a traveling exhibition. It will travel for five years until September 2019, when it will commemorate the 80th anniversary of the aforementioned events. The exhibition will then become permanent and will be expanded to include the factual record of its journeys. It will be located in the newly re-opened National Museum that many of the signatories’ ancestors once co-founded.