Chlumec nad Cidlinou is a place, that after the Treaty of Saint-Germain belonged to Czechoslovakia and was situated in the administrative region Nový Bydžov.
Chlumec nad Cidlinou was formerly part of the German Empire. In the German Empire, the place was called Chlumec nad Cidlinou. The place is now called Chlumec nad Cidlinou and belongs to Czechoslovakia.