Suleiman the Magnificent: The Ottoman Empire at Its Zenith

Suleiman I, known in Europe as Suleiman the Magnificent and in Turkey as Kanuni, “the Lawgiver”, ruled the Ottoman Empire for 46 years, from September 1520 to September 1566. Under him the empire reached the height of its power: his armies conquered Belgrade, Rhodes, most of Hungary and Iraq, his fleets dominated the Mediterranean, and his reign produced lasting law codes and some of the finest architecture of the Islamic world. His reign is traditionally regarded as the Ottoman golden age.

Early life and accession

Suleiman was born in Trabzon on the Black Sea, probably on 6 November 1494, although some sources give a date in 1495. He was the only son of Selim I to survive to adulthood; his mother was Hafsa Sultan. As a prince he received a palace education and gained experience as governor of Kaffa in the Crimea and of Manisa in western Anatolia.

His father, Selim I, doubled the empire’s size in eight years, defeating the Safavids at Chaldiran in 1514 and destroying the Mamluk Sultanate in the Ottoman conquest of Egypt in 1516–1517. When Selim died in September 1520, Suleiman, then 25, came to the throne on 30 September without the bloody succession struggles that had marked earlier reigns.

Conquests in Europe

Suleiman began with two targets that had defeated his great-grandfather Mehmed II. In August 1521 he took Belgrade, the key Hungarian fortress on the Danube, in the Ottoman capture of Belgrade. In 1522 he besieged Rhodes and forced the Knights Hospitaller to surrender after six months in the siege of Rhodes.

On 29 August 1526 he crushed the Hungarian army at Mohács, in a battle that lasted only a few hours. Much of the Hungarian nobility and many bishops fell, and the young King Louis II drowned in a stream while fleeing. Suleiman occupied Buda soon afterwards but withdrew at the end of the campaigning season. Hungary was then contested between the Habsburg Ferdinand I and the Hungarian noble John Szapolyai, whom Suleiman supported. In 1529 Suleiman besieged Vienna, but bad weather, long supply lines and stout resistance forced him to withdraw in October. A second campaign in 1532 was halted at the small fortress of Kőszeg (Güns).

After Szapolyai’s death, Suleiman annexed central Hungary and made Buda an Ottoman province in 1541. Transylvania became a vassal principality. Hungary would remain divided between the Habsburgs, the Ottomans and Transylvania for some 150 years.

Wars in the east and at sea

Iran and the Indian Ocean

Suleiman fought three major campaigns against the Safavid shah Tahmasp I. In 1534 he took Baghdad and much of Iraq, gaining the holy cities of the Shi’a and the Tigris-Euphrates lowlands. Further campaigns in 1548–1549 and 1553–1555 ended in the Peace of Amasya in 1555, the first formal peace treaty between the two empires, which left Iraq in Ottoman hands.

Ottoman power also reached the Red Sea and the Indian Ocean. Fleets sailed from Suez against the Portuguese, besieging Diu in India in 1538, though without success. Yemen and parts of the Arabian coast came under Ottoman control.

Mastery of the Mediterranean

In 1533 Suleiman appointed the North African corsair Hayreddin Barbarossa as grand admiral. Barbarossa defeated a Holy League fleet at Preveza in 1538, and Ottoman and North African fleets dominated much of the Mediterranean for the next three decades. Tripoli was taken from the Knights of St John in 1551.

Suleiman’s alliance with King Francis I of France against the Habsburg emperor Charles V, formalised in the 1530s, made the Ottoman Empire a recognised player in European diplomacy. In 1565, however, a great Ottoman expedition failed to take Malta from the Knights of St John.

Law, government and religion

Suleiman’s Turkish title, Kanuni, comes from kanun, the sultan’s secular law, which existed alongside Islamic law, the sharia. His reign saw a systematic review of existing law codes covering land tenure, taxation, criminal law and the duties of officials. The great jurist Ebussuud Efendi, chief religious authority (şeyhülislam) from 1545 to 1574, worked to harmonise sultanic law with Islamic law.

Government was run by a powerful grand vizier. Suleiman’s boyhood friend Pargalı Ibrahim Pasha held the post from 1523 to 1536 and was one of the most influential men in the empire, until Suleiman had him executed in March 1536. The reasons are debated; historians point to his growing ambition and enemies at court. Later grand viziers included Rüstem Pasha, who married Suleiman’s daughter Mihrimah, and Sokollu Mehmed Pasha.

The army and the provinces

Suleiman’s power rested on a large and well-organised army. Its core was the standing household troops paid from the treasury, above all the Janissaries, infantry recruited as boys through the devşirme, the levy of Christian children from the Balkans, who were converted to Islam and trained for state service. The bulk of the cavalry were sipahis, horsemen who received the revenues of land grants called timars in return for military service.

The same system tied the provinces to the centre. Surveys recorded land, population and taxes in great detail, and governors and judges appointed from Istanbul administered justice and collected revenue. Non-Muslim communities such as Orthodox Christians, Armenians and Jews kept their own religious institutions and paid a special poll tax, an arrangement that allowed a diverse empire to function with relative stability.

Court, family and succession

Suleiman broke with custom by forming a lasting partnership with one woman. Hürrem Sultan, known in Europe as Roxelana, was a captive from Ruthenia who entered his harem around 1520. He freed and married her, probably in the early 1530s, and she bore him five sons and a daughter. Her influence was resented by many contemporaries.

Succession struggles darkened Suleiman’s later years. In 1553 he had his eldest son, Mustafa, a popular prince born to another consort, Mahidevran, executed during a campaign, believing he was plotting rebellion. Hürrem’s son Bayezid later rebelled against his brother Selim, fled to Iran and was executed there with his sons in 1561. Selim II became the heir.

Key people

• Suleiman I (1494–1566), the tenth Ottoman sultan.
• Pargalı Ibrahim Pasha (c. 1495–1536), grand vizier 1523–1536, executed on Suleiman’s orders.
• Hürrem Sultan (c. 1502–1558), Suleiman’s wife and political partner.
• Ebussuud Efendi (1490–1574), chief jurist who shaped the empire’s legal system.
• Mimar Sinan (c. 1490–1588), chief imperial architect from 1539.

Arts and architecture

Suleiman’s reign was a golden age of Ottoman culture. The architect Mimar Sinan designed hundreds of buildings, including the Süleymaniye Mosque in Istanbul, completed in 1557, a complex of schools, hospital, kitchens and baths around one of the city’s greatest domes. Suleiman also restored the walls of Jerusalem, which still stand, and its Dome of the Rock.

Istanbul itself grew into one of the largest cities in Europe and the Middle East, with a population often estimated at several hundred thousand by the mid-sixteenth century. Ceremonies at the Topkapı Palace, the reception of foreign envoys and the sultan’s processions to Friday prayers impressed visitors, whose reports helped create his European reputation for magnificence.

The court workshops produced fine manuscripts, Iznik tiles, textiles and metalwork. Suleiman was himself a poet, writing under the pen name Muhibbi, “the affectionate one”. Writers such as the poet Baki and historians of his campaigns flourished under his patronage.

Timeline

• 1494, 6 November: Suleiman is born in Trabzon (traditional date).
• 1520, 30 September: Accession on the death of Selim I.
• 1521, 29 August: Belgrade surrenders to the Ottomans.
• 1522, December: The Knights Hospitaller surrender Rhodes.
• 1526, 29 August: Victory over Hungary at Mohács.
• 1529, September–October: First Ottoman siege of Vienna fails.
• 1534: Suleiman takes Baghdad.
• 1538, 28 September: Ottoman naval victory at Preveza.
• 1541: Buda becomes an Ottoman province.
• 1566, 5–7 September: Suleiman dies at Szigetvár in Hungary.

Myths and facts

• Myth: “Magnificent” was his Ottoman title. It is a European name; Ottomans and Turks know him as Kanuni, “the Lawgiver”.
• Myth: Suleiman wrote Ottoman law from scratch. His reign codified and revised existing laws, many dating from Mehmed II and earlier.
• Myth: The empire declined immediately after his death. Ottoman territory continued to grow into the seventeenth century, and historians today describe change and adaptation rather than steady decline.

Death and legacy

Aged 71 and in poor health, Suleiman led one final campaign into Hungary in 1566. He died in his tent during the siege of Szigetvár in early September, just before the fortress fell. His grand vizier Sokollu Mehmed Pasha concealed his death from the army for weeks until Selim II had secured the throne. Suleiman was buried in a tomb beside the Süleymaniye Mosque.

His reign left an empire stretching from Hungary to the Persian Gulf and from Algeria to the Caucasus, with an estimated population of perhaps 15 to 25 million people. It gave the Ottomans a reputation in Europe as the most formidable power of the age, and in Turkey Suleiman remains a symbol of imperial greatness, justice and cultural brilliance.

Why it matters

Suleiman’s reign marked the peak of Ottoman power and prestige. His conquests set the borders of Ottoman rule in Europe and the Middle East for generations, his legal reforms shaped Ottoman government, and the buildings and art of his age still define the skyline of Istanbul.