Saint Casimir Jagiellon, patron saint of Poland and Lithuania, was prince of Poland and the Grand Duchy of Lithuania. A member of the Jagiellon dynasty, Casimir was born at Wawel, the royal palace in Kraków, and died at Hrodna. Casimir was the grandson of Władysław II Jagiełło and was the second son of king Casimir IV and queen Elizabeth of Austria. His grandfather was Albert II Habsburg, king of Bohemia, king of Hungary, … Wikipedia
The definitive Wikipedia entry for Saint Casimir. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Saint_Casimir