This study deals with the life and activities of the three last Princes Collalto e San Salvatore in Czechoslovakia (1918-1945). It provides a biographical overview of their lives, family situation and of their activities connected with their Moravian estates from the First Czechoslovak Republic to post-war Czechoslovakia.
It starts with a description of the Land Reform which the old Prince Emanuel had to deal with. The short reign of the fifth Prince Manfred and the final results of the Reform are then described.
The last part briefly describes the fate of the last owner of the Moravian possessions Octavian and his siblings, together with the confiscation of all the Collalto estates in Czechoslovakia.