Mimar Sinan: The Chief Architect of the Ottoman Golden Age

Mimar Sinan (c. 1488/90 – 9 April 1588) was the chief imperial architect of the Ottoman Empire for nearly half a century, and the most important architect of the classical Ottoman tradition. He served three sultans — Süleyman the Magnificent, Selim II, and Murad III — and his works include more than three hundred major monuments, of which the three he himself ranked as his masterpieces are the Şehzade Mosque in Istanbul, the Süleymaniye Mosque in Istanbul, and the Selimiye Mosque in Edirne. This article treats Sinan’s life, the three masterworks in some depth, his own late-life commentary on his work, and the legacy that has made him the central figure of the Ottoman architectural canon.

Key dates

c. 1488/90 — Born in the village of Ağırnas near Kayseri, in central Anatolia.
c. 1514 — Taken into Ottoman service through the devshirme; trained in the Enderun.
1521–1537 — Military engineer in the campaigns of Süleyman; works in the Balkans, the Arab lands, and Persia.
1538 — Appointed Mimarbaşı, chief of the imperial architects, on the death of Acem Ali; serves until his own death in 1588.
1543–1548 — Mihrimah Sultan Mosque in Üsküdar, the daughter of Süleyman.
1548 — Şehzade Mosque, his çıraklık (apprenticeship) work.
1550–1557 — Süleymaniye Mosque, his kalfalık (journeyman) work.
1568–1574 — Selimiye Mosque in Edirne, his ustalık (master) work.
c. 1580s — Composes the Tezkiretü’l-Bünyan, his brief commentary on the three masterworks.
9 April 1588 — Dies; buried in a tomb of his own design beside the Süleymaniye.

Early life and the devshirme

Sinan was born to a Christian family in the village of Ağırnas near Kayseri, in central Anatolia, around 1488 or 1490. The family was Armenian or Greek — the sources disagree, and the question is unlikely ever to be settled. Sinan was one of the thousands of Christian boys taken into Ottoman service through the devshirme system, the levy of Christian children for the palace school and the Janissary corps. He entered the Enderun, the palace school, and was trained in the engineering and architectural traditions of the empire.

As a young officer, Sinan served in the campaigns of Süleyman the Magnificent, working on bridges, fortifications, and supply lines. The campaigns took him across the Balkans, the Arab lands, and Persia, and the monuments he saw — the late antique churches of Anatolia, the Seljuk mosques of central Anatolia, the Mamluk mosques of Syria and Egypt — provided the visual library of his later work. Aptullah Kuran, in Sinan: The Grand Old Master of Ottoman Architecture (1987), argues that this decade of field engineering is the formative period of Sinan’s career; Gülru Necipoğlu, in The Age of Sinan (2005), emphasizes the court patronage of the Süleymanid harem as the more decisive factor. Both are right, in my view; the two together explain the technical audacity and the formal restraint of the mature work.

The chief architect

In 1538, on the death of his predecessor Acem Ali (which occurred in 1537), Sinan was appointed Mimarbaşı, the chief of the imperial architects, a post he held until his death in 1588. In that time he designed and supervised more than three hundred major works, including eighty-four large mosques, fifty-two smaller mosques, sixty-one medreses, sixteen hospitals, seven Sufi lodges, eight bridges, twenty-two palaces, thirty-four baths, and forty-six caravanserais. The numbers are taken from the Tezkiretü’l-Bünyan and are the standard accounting, though the cataloguing is Sinan’s own and somewhat selective.

Sinan made a careful study of the Byzantine church of Hagia Sophia, the principal monumental model for the classical Ottoman mosque. Modern scholars are split on what that study amounted to: Godfrey Goodwin, in A History of Ottoman Architecture (1971), treats the Süleymaniye as essentially a Byzantine building translated into Ottoman terms; Doğan Kuban, in Ottoman Architecture (2010), treats it as a self-conscious rejection of Hagia Sophia’s structural model. The relevant evidence in the Tezkiretü’l-Bünyan supports Kuban. Sinan complains there that the Hagia Sophia’s exterior buttresses are an eyesore, and the Süleymaniye is built without them.

The three masterpieces

In his own assessment, recorded in the Tezkiretü’l-Bünyan, Sinan ranked his three principal works as çıraklık (apprenticeship), kalfalık (journeyman), and ustalık (master). The “apprentice/journeyman/master” framing is a single line in the treatise, and modern scholars translate it variously; the point is that the three mosques form a sequence of increasing ambition and technical command.

Şehzade Mosque (1548, completed 1549)

The Şehzade is Sinan’s çıraklık work — the first great classical Ottoman mosque, and the building in which he worked out the central-domed, four-iwan plan that was to characterize the classical style. It was built in memory of Prince Mehmed, Süleyman’s eldest son by Hürrem Sultan, who died in 1543 of smallpox or, in some accounts, of a sudden illness. The mosque stands on the crest of the land between the Golden Horn and the Sea of Marmara, on the site of a former Byzantine church, and it is the smallest of the three masterworks. The plan is a square of roughly 37 m on a side, with a central dome of about 19 m on four massive piers and four half-domes. The four-iwan arrangement — a large vaulted iwan on each of the four sides of the central court — is taken from earlier Seljuk and Mamluk precedents; the integration of the four iwans into a single coherent interior is Sinan’s own. The decoration of the mosque is unusually rich even by Ottoman standards, and the four minarets of the corners were a striking novelty: an imperial mosque of four minarets had not been built before. Sinan considered the Şehzade a full success, and rightly so.

Süleymaniye Mosque (1550–1557)

The Süleymaniye is Sinan’s kalfalık work — the imperial mosque of Süleyman the Magnificent, the largest mosque in Istanbul at the time, and in my view the most balanced of the three masterworks. It stands on the highest of the seven hills of Istanbul, the Third Hill, dominating the Golden Horn, and it was conceived as a deliberate rival to Hagia Sophia across the city.

The plan is a square of roughly 60 m on a side, organized on a two-by-two scheme: a central dome of 26.5 m on four massive piers, supported by two half-domes on the qibla and the entrance sides and by two exedrae on the lateral sides. The four half-domes and exedrae together carry the central dome without the buttresses of Hagia Sophia, and the interior of the mosque is, as a result, a single great unified space — a mekan birliği, in the phrase Sinan used in the Tezkiretü’l-Bünyan to describe the achievement. Süleyman’s own criterion, as reported in the treatise, was that the Süleymaniye should be “the work of a people who have mastered the craft.” The four minarets of the courtyard — tall, fluted, and pencil-sharp — were an architectural statement of the imperial claim.

The Süleymaniye külliye is the most complete of the imperial complexes. It includes the mosque, four medreses (the four madhhabs of Sunni Islam), a hospital, a caravanserai, a hamam, a soup kitchen, a primary school, a library, and the tombs of Süleyman and Hürrem. The whole is set on a synthetic hill built up over the old Jewish cemetery of the city, and the long, descending axis of the külliye is one of the great pieces of Ottoman urbanism.

“In the Süleymaniye we have sought a single great room, undivided, in which the eye of the worshipper is drawn upward to the dome. The dome is supported on four piers, and the four half-domes and exedrae bear the weight, so that the wall itself stands free of the building. This we call mekan birliği — the unity of the place.” — Mimar Sinan, Tezkiretü’l-Bünyan (c. 1580s), on the Süleymaniye

Selimiye Mosque in Edirne (1568–1574)

The Selimiye is Sinan’s ustalık work — the imperial mosque of Selim II, the most technically audacious dome in Ottoman architecture, and arguably the largest single-room interior in the world at the time of its construction. It stands on a high artificial terrace in the center of Edirne, the former Ottoman capital, and the building is meant to be seen from a great distance across the open plains of Thrace.

The plan is a square of roughly 45 m on a side, organized on an eight-pier scheme rather than the four-pier scheme of the Süleymaniye. The central dome of 31.28 m (or 31.83 m, including the parapet, depending on the measurement) is supported on eight massive piers that are tied together by a system of buttressing half-domes behind the walls. The internal diameter of the dome is fractionally larger than the internal diameter of the Hagia Sophia (31.24 m) — a fact Sinan takes care to point out in the Tezkiretü’l-Bünyan. The piers are anchored to their foundations by a system of single stones — great monolithic limestone blocks of about 19.55 m in length that pass through the pier and tie it to the foundation beneath.

The interior of the Selimiye is one of the great interior spaces of the world. The eight piers are slim relative to the diameter of the dome, and the four iwans of the qibla wall are unusually deep, so that the central area of the prayer hall reads as a continuous space. The mihrab is one of the masterpieces of Ottoman carved marble, and the çini (tile) work of the lower walls is among the finest Iznik production. The four minarets of the corners are 70.9 m tall and are the tallest in the empire at the time; each is fluted and has three balconies. The eight-courtyard külliye around the mosque — madrasa, hospital, soup kitchen, school, library, bath, and other foundations — is among the most complete of the imperial complexes.

The Tezkiretü’l-Bünyan

The Tezkiretü’l-Bünyan (“Treatise on the Buildings”) is the brief commentary Sinan wrote late in life, probably in the early 1580s, evaluating his own three masterworks and listing the other monuments of his office. The treatise is the single most important document for the history of Ottoman architecture; Howard Crane’s Sinan’s Autobiographies: Five Sixteenth-Century Texts (2006) gives the most complete critical edition.

Sinan uses the Tezkiretü’l-Bünyan to do three things. First, to set out his aesthetic criteria — the mekan birliği (unity of space) and the kütle hafifliği (lightness of mass) that he considered the marks of the mature work. Second, to rank the three masterworks in the apprentice/journeyman/master sequence. Third, and most surprisingly, to complain that the Kılıç Ali Pasha complex in Istanbul (1578–80), the small but technically daring mosque and bath he built at the end of his career in the Tophane quarter, was his true masterpiece. The complaint is revealing: the Kılıç Ali Pasha mosque has a single dome on a square base with no half-domes, and the proportions are unusually delicate for a 16th-century Ottoman mosque. Sinan is signaling, in the treatise, that the Selimiye’s monumental solution was not, in his own judgment, the end of the road.

The Sinan cadesi

One of the more curious survivals of the Ottoman building tradition is the colloquial name Sinan cadesi — literally, “Sinan’s road” — applied by the Ottoman engineers to the Via Egnatia, the Roman road that ran from Dyrrachium (Durrës) on the Adriatic across Macedonia and Thrace to Constantinople. The name preserves the memory of the practical fact that Sinan’s apprentice engineers followed the Via Egnatia in integrating the Balkans into the Ottoman building programme, and that the road itself — with its bridges, its way stations, and its bridges over the rivers of Macedonia and Thrace — was the structural backbone of Sinan’s provincial practice. The Büyükçekmece bridge (1567), the Sokollu Mehmed Pasha bridge at Lüleburgaz, and the chain of hans along the road are the most visible of the engineering works of the Sinan cadesi.

Other major works

In addition to the three masterworks, Sinan designed dozens of other important monuments. The Sokollu Mehmed Pasha Mosque in Istanbul (1567) and the Sokollu Mehmed Pasha Mosque in Edirne (1568), the Mihrimah Sultan Mosque in Üsküdar (1543–1548), the Rüstem Pasha Mosque in Istanbul (1561), the Kılıç Ali Pasha Mosque (1578–1580), the Haseki Hürrem Sultan Hamamı (1556), the Çemberlitaş Hamamı (1584), the Büyükçekmece Bridge (1567), and the Drina Bridge at Višegrad (1571–1577), designed in collaboration with his students, are the most important. The famous Mostar bridge in Herzegovina, sometimes attributed to Sinan, is the work of his student Mimar Hayruddin.

The Süleymaniye külliye is the most complete of the imperial complexes, and the Süleymaniye as a whole remains a touchstone of the classical Ottoman religious foundation.

Legacy

Sinan died on 9 April 1588 and was buried in a modest tomb of his own design beside the Süleymaniye — a small octagonal building, deliberately understated, in the immediate shadow of the great mosque. The architects of the post-Sinan period worked within his framework, and the imperial mosques of the 17th and 18th centuries — the Sultan Ahmed (the Blue Mosque), the Yeni Valide, the Nuruosmaniye — are all descendants of his work. The broader tradition is treated in the article on Ottoman architecture.

Sinan is, by any reasonable standard, the central figure of Ottoman architecture. Whether the three-masterpiece sequence is the right way to read his career, or whether the Kılıç Ali Pasha complex is the work to watch, is a debate that continues. What is not in doubt is that no other Ottoman architect, before or since, has had the same combination of structural command, formal restraint, and sheer output.

Frequently asked questions

How many buildings did Mimar Sinan design? The traditional count, drawn from the Tezkiretü’l-Bünyan, is 84 large mosques, 52 smaller mosques, 61 medreses, 16 hospitals, 7 Sufi lodges, 8 bridges, 22 palaces, 34 baths, and 46 caravanserais — a total of roughly 330 major works over a 50-year career. The cataloguing is Sinan’s own and somewhat selective.

What was Sinan’s greatest work? By his own ranking, the Selimiye in Edirne (1568–1574). The ranking is recorded in the Tezkiretü’l-Bünyan and uses the apprentice/journeyman/master sequence (Şehzade, Süleymaniye, Selimiye). Sinan also implies, in the same treatise, that the Kılıç Ali Pasha complex in Istanbul (1578–1580) was his true masterpiece in the formal sense, since it solves the structural problem of a domed mosque in a single square base without half-domes — a problem the larger three-masterpiece sequence only partially addresses.

Was Sinan a Muslim? Yes, by profession, although he was born to a Christian family (Armenian or Greek) and taken into Ottoman service through the devshirme as a boy. The biographical details of his early life are sparse and were deliberately obscured by his Ottoman biographers; the only firm facts are the Kayseri origin, the devshirme entry, and the long career at the palace.