Career
He was canon of several cathedral chapters and also first minister of the Prince-Archbishopric of Cologne under Archbishop Clemens August. From 1750 until his death, he was also the ruling count of Hohenzollern-Haigerloch. In 1717, Franz Christoph Anton became canon in Cologne.
In 1725, he became cathedral chaplain.
From 1726, he was also canon in Strasbourg and Salzburg. Between 1748 and 1750, he was Chorbishop at Cologne and from 1750 to 1763, he was Vice Dean, and also Cathedral Treasurer.
In 1763, he succeeded Asseburg as first minister under Prince-Archbishop Clemens August. He also served as Hofmeister, war councillor, governor of the Diocese of Strasbourg and chancellor of the University of Cologne.
From 1763, he was provost (religion) of Cologne cathedral.
He died on 23 November 1767 and was buried in the Cologne Cathedral.