The paper will focus on the personality of Professor Antonín Hobza, with an emphasis on his contribution to the development of the Czechoslovak doctrine of international law and its practical application to the foreign policy of its time, realized mainly by concluding international treaties, and the international legal standing of the First Czechoslovak Republic in interwar Europe. In this context, the paper will analyse the nature of the binding character of international treaties in the Constitution of the First Republic as one of inspirational sources for our current Constitution.
The contribution will also present some timeless views of prof. Hobza, which are still relevant today, concerning, for example, the development of international organizations or the number of subjects of international law.