The Old Mosque (Turkish: Eski Camii) is an old Ottoman mosque in Edirne, Turkey. Construction was started by Emir S?leyman, and completed under the rule of his brother, Sultan Mehmet I during 1402-1414. The mosque is located in the historical center of the city, near the market and close to other prominent historical mosques, Selimiye Mosque and ?? ?erefeli Mosque. The mosque had originally a single minaret, the taller one was later built by Murat II. Inside the mosque large calligraphy works can be seen. The plaque (kitabe) above its western portal gives the name of the architect, Haci Alaeddin of Konya.