Atik Sinan
Sinan-i Atik, also known as Azadlı Sinan, and Atik Sinan (meaning Sinan the Freedman; azadlı shows that atik does not mean old, and is not used to distinguish him from Koca Mimar Sinan Agha), was an Ottoman architect for Sultan Mehmed II during the 15th century.
Biography
He is credited with being the architect who designed and built Istanbul's first selatin mosque, the Fatih Mosque and its complex, in 1471 for Mehmed II, over the ruins of the Church of the Holy Apostles, which was razed to the ground by the Ottomans in order for the Fatih Mosque to be built. His nephew, also an architect, built Bayezid II Mosque. Tradition holds that Sultan Mehmed II endowed the Greek orthodox Church of St. Mary of the Mongols, the only church in Istanbul still standing never converted into a mosque, to the mother of Christodoulos in acknowledgment of his work. This grant was confirmed by Bayazid II, in recognition of the services of the nephew of Christodoulos, who built the mosque, which bears that sultan's name.