Harthausen (Hagenau-Harthausen) is a place, that before the Versailles Treaty belonged to German Empire and was situated in the administrative region Hagenau.
Harthausen (Hagenau-Harthausen) was formerly part of the German Empire. In the German Empire, the place was called Hardhausen (Hagenau-Hardhausen). The place is now called Harthouse (Haguenau-Harthouse) and belongs to France.