History
On the site of the present-day Ortaköy Mosque there was previously a small mosque built in 1720 and ruined during the Patrona Halil Uprising in 1731. The current mosque was commissioned by the Ottoman sultan Abdülmecid I and built or completed around 1854 or 1856 (the exact dates of construction vary between scholarly sources). Its architects were Armenian father and son Garabet Balyan and Nikoğos Balyan, who worked as a team and who also designed the nearby Dolmabahçe Palace and the Dolmabahçe Mosque in 1853–1855. The mosque was damaged in the 1894 Istanbul earthquake, and it also suffered a minor fire in 1984. Thus, the structure has undergone a number of repair and restoration work in its time. After the 1894 quake, the mosque was repaired by the Ministry of Foundations in 1909, and the original fluted minarets were replaced with more austere masonry work. The single dome of the mosque was originally built using bricks and it developed cracks over time. By the 1960s, the building was also starting to lean and the dome was ready to collapse, so its foundations were reinforced and a new dome was reconstructed using concrete. The mosque reopened in 1969.A three-year restoration project by the General Directorate of Foundations was completed in 2014, at a cost of almost 7 million liras. The mosque was officially reopened on 6 June 2014 with a ceremony attended by Recep Tayyip Erdoğan, the Prime Minister at the time, and other government officials.Architecture
As with their other projects in Istanbul, the Balyans designed the mosque in a mixed or eclectic style incorporating contemporary European Revivalist trends such as Neoclassical, along with some details and overall design elements drawn from the earlier Ottoman Baroque style. However, it is distinguished from other mosques of the period by its particularly ornate stone-carved decoration. The building consists of a two-story imperial apartment for the sultan, which has a U-shaped plan, and a main prayer hall for the mosque, which has a square plan covered with one dome. The facades with engaged columns are decorated by carved stone reliefs, giving the mosque a "dynamic appearance". There are two rows of windows providing the mosque with illumination. The reconstructed dome was built from concrete, while stone was used to build the two, slim minarets. The minarets have balconies resembling Corinthian capitals. The mosque is small in comparison to other mosques on the other side of the Golden Horn. In terms of the interior space, it is modest in scale but the inside is spacious and has wide, tall windows which refract its reflection in water as well as allowing in daylight. Materials like marble and porphyry were used to build the mihrab and minbar. The inside of the dome is adorned with '' Trompe-l'œil'' frescoes, which were a feature first introduced to Ottoman architecture during the reign of Abdülmecid I. The ''trompe-l'œil'' paintings here include depictions of niche-like windows with curtains as well as rows of mihrabs, executed in a Neo-Renaissance style while also incorporating elements of traditionalNotes
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* * {{DEFAULTSORT:Ortakoy Mosque Beşiktaş Bosphorus Garabet Amira Balyan buildings Nigoğayos Balyan buildings Ottoman mosques in Istanbul Religious buildings and structures completed in 1856 Mosques completed in the 1850s Baroque mosques of the Ottoman Empire 19th-century mosques in Turkey Mosque buildings with domes in Turkey Mosque buildings with minarets in Turkey