Zedlitz was born on 4 January 1731 in Schwarzwaldau in Silesia (now Czarny Bór, Lower Silesian Voivodeship, Poland).
[1] After his education at the Military Academy in Brandenburg an der Havel, he took a civil service position as clerk in the Chamber Court in 1755.
From 18 November 1770 to 18 January 1771, he headed the Prussian Supreme Tribunal – then the fourth senate of the Kammergericht – as its president.
A follower of Immanuel Kant's philosophy, he promoted education and a free spiritual direction for people in the higher schools.
In 1788, Zedlitz lost the spiritual department when Johann Christoph von Wollner was transferred.