The double city of Ginsheim-Gustavsburg in the northwest of the Groß-Gerau district in the German state of Hesse, has about 16,000 inhabitants. It is part of what is called the Rhine-Main region in Germany which has the city of Frankfurt am Main at its centre. Geography Location Ginsheim-Gustavsburg lies south of the Main and north of the Rhine in the so-called Mainspitze triangle, a narrow piece of land between the Main and Rhine where the former empties into the latter. Across the Rhine from the community lies Mainz. Wiesbaden is also nearby. Neighbouring communities Ginsheim-Gustavsburg borders in the north on the district-free city of Wiesbaden and the town of Hochheim (Main-Taunus-Kreis), in the east on the community of Bischofsheim and the town of Rüsselsheim, in the south on the community of Trebur, and in the west on the community of Bodenheim (Mainz-Bingen) and the district-free city of Mainz. Constituent communities As its name suggests, Ginsheim-Gustavsburg consists of two centres, named Ginsheim and Gustavsburg. History Ginsheim The placename is believed to go back to the Frankish Gimmo family and had its first documentary mention in 1211 as "Ginnensheim" in the "Oculus Memorie" (Eberbach Monastery's goods directory). After the former Imperial village was pledged to Count Dieter von Katzenelnbogen in 1248, history yields other noble families' names such as Falkenstein, Sayen and Isenburg as the village's overlords changed. In 1600, the village ended up in the Hesse-Darmstadt Landgrave Ludwig V's hands. In the Thirty Years' War, the community was so badly battered that from 1634 to 1642, hardly anyone lived there. Typical trades in Ginsheim in bygone ages are said to have been farmer, fisherman and miller. Milling developed itself into a proper line of industry. At any one time, up to 15 floating watermills were anchored at Ginsheim, with the last one being withdrawn from service in 1929. It was towed to Mainz Harbour where it was placed under protection as a monument until it was destroyed in an air-raid late in the Second World War. This and some other interesting chapters in the local history are on display at the Heimatmuseum. Gustavsburg The constituent community of Gustavsburg owes its name to the Swedish King Gustav Adolf, who in 1632, during the Thirty Years' War had a fort built on the Mainspitze. Found during work on this was, among other things, a Roman horseman's gravestone, a copy of which now graces