Prince Kazimierz Florian Czartoryski (1620-1674) was a 17th-century Primate of Poland, Bishop of Pozna? and W?oc?awek.
Born in 1620 at Klevan the eldest son of Nicholas George Czartoryski and Isabella Kordecka.
He obtained his doctorate in theology in Rome and was ordained to the priesthood.
He was Secretary to King W?adys?aw IV, in 1651, he was the Bishop of Pozna? and in 1655 become Bishop of Kuyavia.
During the Swedish deluge took refuge with King Jan Kazimierz in Silesia, where he stayed until July 1657.
On 15 April 1673 after the death of primate Miko?aj Pra?mowski he took over his Office.
He died on 15 May 1674 at Warsaw, Poland.