Woiwodschaft Kiew
He was born on 6 April 1723 in Volhynia to the noble Czaplic family. His father Ignaczy Czaplic, was a podstoli of Kiev in the Kiev Voivodeship. He attended schools in Volhynia, and spent time at the court of the magnate and prince Antoni Lubomirski. Later, he became an ally of the Czartoryski family.