Mainz-Kostheim is a district administered by the city of

Wiesbaden Wiesbaden () is a city in central western Germany and the capital of the state of Hesse. , it had 290,955 inhabitants, plus approximately 21,000 United States citizens (mostly associated with the United States Army). The Wiesbaden urban area ...

, Germany. Its population is 14,381 (). Mainz-Kostheim was formerly a district of the city of

Mainz Mainz () is the capital and largest city of Rhineland-Palatinate, Germany. Mainz is on the left bank of the Rhine, opposite to the place that the Main joins the Rhine. Downstream of the confluence, the Rhine flows to the north-west, with Ma ...

, until the public administration by the city of

was decided on 10 August 1945. The reason for this had been the easy control of the

Allied Occupation Zones in Germany Germany was already de facto occupied by the Allies from the real fall of Nazi Germany in World War II on 8 May 1945 to the establishment of the East Germany on 7 October 1949. The Allies (United States, United Kingdom, Soviet Union, and Franc ...

, 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 ), Surselva, Graubünden, Switzerland , source1_coordinates= , source1_elevation = , source2 = Rein Posteriur/Hinterrhein , source2_location = Paradies Glacier, Graubünden, Switzerland , source2_coordinates= , source ...

river. In 1184

Frederick I, Holy Roman Emperor Frederick Barbarossa (December 1122 – 10 June 1190), also known as Frederick I (german: link=no, Friedrich I, it, Federico I), was the Holy Roman Emperor from 1155 until his death 35 years later. He was elected King of Germany in Frankfurt ...

held one of the biggest diets of the Middle Ages at the Maaraue in Kostheim, the Diet of Pentecost. Occasion had been the promotion to

Knighthood A knight is a person granted an honorary title of knighthood by a head of state (including the Pope) or representative for service to the monarch, the church or the country, especially in a military capacity. Knighthood finds origins in the ...

of is both sons Henry hand Frederic,

Duke of Swabia The Dukes of Swabia were the rulers of the Duchy of Swabia during the Middle Ages. Swabia was one of the five stem duchies of the medieval German kingdom, and its dukes were thus among the most powerful magnates of Germany. The most notable famil ...

. During the Siege of Mainz by Prussian and Austrian troops in the

Napoleonic Wars The Napoleonic Wars (1803–1815) were a series of major global conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European states formed into various coalitions. It produced a period of Fre ...

Kostheim had been severely damaged several times. In the cause of the bombing of Mainz in World War II Mainz-Kostheim was subject to air raids. The Linde Group has been located in Kostheim before recent mergers, acquisitions and transition.

Twin towns – sister cities

Mainz-Kostheim is twinned with: *

Sankt Veit an der Glan Sankt Veit an der Glan (; sl, Šentvid ob Glini) is a town in the Austrian state of Carinthia, the administrative centre of the Sankt Veit an der Glan District. It was the historic Carinthian capital until 1518. The famous chef Wolfgang Puck was ...

, Austria

References

Boroughs of Wiesbaden Divided cities Former boroughs of Mainz Rheingau {{Hesse-geo-stub