| Type: | parish |
| Official Name: | Alferce |
| Region: | Algarve |
| Cim: | Algarve |
| District: | Faro |
| Municipality: | Monchique |
| Coordinates: | 37.333°N -8.49°W |
| Area Total: | 96.12 |
| Population Total: | 441 |
| Population As Of: | 2011 |
| Website: | http://www.jf-alferce.pt/ |
Alferce is a freguesia (parish) in the Monchique Municipality (Algarve, Portugal). The population in 2011 was 441,[1] in an area of 96.12 km².[2]
Lies in this area remains of a medieval fortress from Muslim rule in Portugal known in Islamic sources (Hillah Sirah of Ibn Abbar & others) as حصن المرجيق - Monchique fortress.
The fortress was captured in 1144 by the followers of Ibn Qasi from the Almoravids. Less than a century later, it became part of the Kingdom of Portugal who seized the fortress from Ibn Mahfuz (Aben Mahfot in
Spanish sources), then leader of the Algarve region & Niebla (Dawlah Islam fil Andalus - Abdullah bin Inan).