Floridsdorf is the 21st district of Vienna, located in the northern part of the city and comprising seven formerly independent communities: Floridsdorf, Donaufeld, Greater Jedlersdorf, Jedlesee, Leopoldau, Stammersdorf, and Strebersdorf.

Jedlesee is a suburb of Floridsdorf, the 21st district of Vienna. An independent community until 1894, it was joined along with Leopoldau, Donaufeld, Floridsdorf and Neu Jedlesdorf to the greater Floridsdorf municipality, becoming part of Vienna in 1904. Jedlesee is most notable for being the site of the estate of Countess Anna Maria Erdődy, close friend and patron of Beethoven, who stayed there with her on numerous occasions between 1805 and 1818.