Jaunjelgava county

Jaunjelgava county (Latvian: Jaunjelgavas apriņķis, German: Kreis Friedrichstadt, Russian: Фридрихштадтский уезд) was a historic county of the Courland Governorate and of the Republic of Latvia.

Initially, the Captaincy of Friedrichstadt (German: Hauptmannschaft Friedrichstadt) was as a subdivision of the Duchy of Courland and Semigallia.

In 1795, the Duchy was incorporated into the Russian Empire, and in 1819 Friedrichstadt County (Kreis Friedrichstadt) became one of the ten counties of the Courland Governorate.

At the time of the Russian Empire Census of 1897, Kreis Friedrichstadt had a population of 64,795.

Of these, 83.0% spoke Latvian, 9.3% Yiddish, 2.8% German, 2.6% Russian, 1.2% Lithuanian, 0.8% Polish, 0.2% Romani and 0.1% Belarusian as their native language.