Wojciech Bogumił Jastrzębowski’s draft of a Constitution for Europe is a vision of an ideal European social order, whose foundation is to be found, inter alia, in the citizen’s universal right to freedom and independence, to diversity and individual identity, as well as the right to live in peace. It is thus highly apparent that a number of parallels exist between the alliance of nations postulated by Jastrzębowski and later forms of integration existing and still being developed in contemporary Europe. The aim of this article is to analyse and characterize the existing similarities, and also the most significant differences, between the monarchist vision of the European alliance of nations, as presented by the author of the Constitution for Europe, and the contemporary realisation of the idea of the unity of the continent.