Dizy () is a commune in the Marne department in north-eastern France.
Geography Dizy is situated in the Marne valley, on the main road between Épernay (3 km) and Reims (23 km).
The village is north of Magenta, south of Champillon, east of Hautvillers and west of Ay.
History The place is first mentioned in 662 as Villa Disiacum perhaps owing to the roman surname -Decius.
In 1881, the commune which was called Dizy until 1801, then Dizy-sur-Marne, took the name of Dizy-Magenta. In 1965, when Magenta became independent, the village took again the name of Dizy.
Demographics The inhabitants of the commune are called Dizyciens.
Twin towns Dizy is twinned with: Sommerach, Germany
See also Communes of the Marne department Montagne de Reims Regional Natural Park
References