The Gate of Ashes (in German Aeschentor) is a former city gate in the ancient city walls of Basel, Switzerland. It was pulled down in 1861 along with three other gateways and the city walls.
The derivation of the name Aeschen is not definitely proven. It may come either from the word "Asche" (German for ash) or from the word "Esche" (German for ash tree); in fact both German words have the same English translation.
References
Gate of Ashes Wikipedia(Text) CC BY-SA