 He was a legate of the Polish-Lithuanian Commonwealth's Great Parliament and one of the promoters of the first in Europe democratic Constitution of May 3, 1791 (and second in the world, after the United States Constitution).His grandson, Dyonizy Odrowaz-Sypniewski, an architect, exiled to United States and U.K., where he published – at his own expenses – many treatises and political books regarding Partitions of Poland and advocated for restitution of Poland in general.His avid anti-Russian, anti-Prussian and anti-Austrian activities didn't go well with U.K. government (all 3 countries being allies of British Empire at the time).