Proloch was formerly part of the German Empire. In the German Empire, the place was called Proloh.
The place is now called Proloh and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Proloch | Austro-Hungary | Reichenau a. d. Knieschna | before the Treaty of Saint-Germain |
| Proloh | Austro-Hungary | Reichenau a. d. Knieschna | before the Treaty of Saint-Germain |
| Proloh | Czechoslovakia | Rychnov nad Kněžnou | after the Treaty of Saint-Germain |
| Proloch | German Empire | Reichenau an der Knieschna | 1939 |
| Proloh | German Empire | Reichenau an der Knieschna | 1939 |
| Proloh | Czechoslovakia | Rychnov nad Kněžnou | 1945 |
| Proloh | Czechoslovakia | Východní Čechy | 1992 |