Marmels Castle
| Marmels Castle | |
|---|---|
| Marmorera | |
| The ruins of Marmels Castle | |
| Site information | |
| Type | Cave Castle | 
| Code | CH-GR | 
| Condition | ruined | 
| Location | |
| Coordinates | 46°30′24″N 9°37′39″E / 46.50666°N 9.62740°E | 
| Height | 1,710 m above the sea | 
| Site history | |
| Built | around 1100 | 
| Materials | rubble stone | 
| Garrison information | |
| Occupants | Ministerialis | 
Marmels Castle German: Burg Marmels is a ruined castle in the municipality of Marmorera in the district of Albula in the canton of Graubünden in Switzerland.