# Mainz-Kostheim

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{{Use dmy dates|date=December 2021}}
thumb|Location of Mainz-Kostheim

'''Mainz-Kostheim''' ({{IPA|de|ˈmaɪnts ˈkɔsthaɪm}})<ref>{{cite web |title=75 Jahre Amöneburg, Kostheim und Kastel - Rheingehört! - Folge 24 |url=https://www.youtube.com/watch?v=C-1Cu4FDvOA |website=YouTube |publisher=Wiesbadener Kurier |access-date=13 February 2025}}</ref> is a district administered by the city of [Wiesbaden](/source/Wiesbaden), Germany. Its population is 14,381 ({{asof|2020}}).<ref name=pop20>{{cite web|url=https://www.wiesbaden.de/guiapplications/newsdesk/publications/Landeshauptstadt_Wiesbaden/141010100000395663.php?sp-mode=download&download=0|title=Bevölkerung in den Ortsbezirken am 31. Dezember 2020|publisher=Landeshauptstadt Wiesbaden|access-date=22 September 2021}}</ref> Mainz-Kostheim was formerly a district of the city of [Mainz](/source/Mainz), until the public administration by the city of [Wiesbaden](/source/Wiesbaden) was decided  on 10 August 1945.  The reason for this had been the easy control of the [Allied Occupation Zones in Germany](/source/Allied_Occupation_Zones_in_Germany), where the Rhine formed the border between the American sector and the French sector. Mainz-Kostheim faces the city of Mainz on the opposite shore of the [Rhine](/source/Rhine) river. 

In 1184 [Frederick I, Holy Roman Emperor](/source/Frederick_I%2C_Holy_Roman_Emperor) held one of the biggest diets of the Middle Ages at the Maaraue in Kostheim, the [Diet of Pentecost](/source/Diet_of_Pentecost). Occasion had been the promotion to [Knighthood](/source/Knighthood) of is both sons [Henry](/source/Henry_VI%2C_Holy_Roman_Emperor) hand Frederic, [Duke of Swabia](/source/Duke_of_Swabia). During the [Siege of Mainz](/source/Siege_of_Mainz_(1814)) by Prussian and Austrian troops in the [Napoleonic Wars](/source/Napoleonic_Wars) Kostheim had been severely damaged several times. In the cause of the [bombing of Mainz in World War II](/source/bombing_of_Mainz_in_World_War_II) Mainz-Kostheim was subject to air raids.

[The Linde Group](/source/The_Linde_Group) has been located in Kostheim before recent mergers, acquisitions and transition.

==Twin towns – sister cities==
{{See also|List of twin towns and sister cities in Germany}}
Mainz-Kostheim is [twinned](/source/Sister_city) with:<ref>{{cite web|title=Stadtteilpartnerschaften|url=https://www.wiesbaden.de/leben-in-wiesbaden/stadtportrait/partnerstaedte/content/stadtteilpartnerschaften.php|website=wiesbaden.de|publisher=Wiesbaden|language=de|access-date=17 February 2021|archive-date=7 April 2019|archive-url=https://web.archive.org/web/20190407231743/http://www.wiesbaden.de/leben-in-wiesbaden/stadtportrait/partnerstaedte/content/stadtteilpartnerschaften.php|url-status=dead}}</ref>
*{{flagicon|AUT}} [Sankt Veit an der Glan](/source/Sankt_Veit_an_der_Glan), Austria

==References==
{{reflist}}

{{Wiesbaden}}

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{{Authority control}}
Category:Boroughs of Wiesbaden
Category:Divided cities
Category:Former boroughs of Mainz
Category:Rheingau
Category:Populated places on the Main basin

{{Hesse-geo-stub}}

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Adapted from the Wikipedia article [Mainz-Kostheim](https://en.wikipedia.org/wiki/Mainz-Kostheim) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Mainz-Kostheim?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.