The Ottoman sultan who took Constantinople in 1453 at the age of twenty-one, ending the Byzantine Empire and transforming his state into an empire astride Europe and Asia.
Life
Mehmed II was born in Edirne in 1432, third son of the Ottoman sultan Murad II, and twice took the throne: briefly as a boy of twelve when his father abdicated in 1444, then definitively on Murad's death in 1451. Educated under exacting tutors — the sources name Molla Gurani, whose rod the young prince felt — he emerged commanding Turkish, Arabic, Persian, and by contemporary accounts conversant with Greek and some Latin learning; the Greek historian Kritovoulos, who served him, and the Ottoman chronicler Tursun Beg are the two nearest witnesses of his reign.
On 29 May 1453, aged twenty-one, he took Constantinople after a fifty-three-day siege — the guns of Urban, the fleet dragged overland into the Golden Horn, the final assault through the Romanos gate — ending the Roman empire of the east and earning the title by which the Ottoman house forever after knew him: Fatih, the Conqueror, heir to the Prophet's transmitted tiding that "Constantinople shall surely be conquered — how excellent the commander, and how excellent that army," a report carried in the Musnad of Ahmad and long invoked by the Ottomans. Three decades of nearly annual campaigning followed — Serbia, the Morea, Trebizond, Bosnia, Karaman, Albania, the Crimea made vassal, Otranto in Italy itself seized in 1480 — until his death on campaign in 1481, aged forty-nine, with his final objective still concealed from his own army. He was buried at his Fatih mosque complex in the city he had remade as Istanbul, capital of the empire.
Struggles & Trials
Mehmed's first struggle was for the throne itself: the humiliating first sultanate of 1444–46, when the boy-sultan faced the Varna crusade, a janissary revolt, and his father's recall — an apprenticeship in insecurity that shaped the ruthless consolidation of 1451. His accession law — the codified permission, in his Kanunname, for a sultan's accession fratricide "for the order of the world" — began with the strangling of his infant half-brother Ahmed; Ottoman jurists' acceptance and later Ottoman and modern revulsion are both part of the documented record.
The conquest itself was a struggle against his own establishment: the vizier Candarli Halil counseled against the siege and was executed after it — the old Turkish aristocracy broken in favor of the devshirme men who would staff the classical empire. His later decades fought logistics as much as enemies: the failed sieges of Belgrade (1456, where he was wounded) and Rhodes (1480), Scanderbeg's decades of Albanian resistance, Uzun Hasan's eastern coalition destroyed at Otlukbeli (1473), and the fiscal strain — debased coinage, confiscated endowments — that his son Bayezid would partially reverse amid pious reaction.
Teachings & Character
Mehmed governed as legislator as much as conqueror. His Kanunname — the first great Ottoman codification of state law alongside the sharia — fixed the court's offices, taxes, and the notorious fratricide clause; his register surveys and timar assignments organized the conquests into a system. To the conquered church he gave a documented settlement: days after the conquest he installed Gennadios Scholarios as Greek patriarch with charter privileges, and the Armenian patriarchate and a Jewish chief rabbinate followed — the seed of the later millet order, recorded by Kritovoulos and the patriarchal histories together.
His court was deliberately universal: Persian and Turkish poets, Arabic scholarship — the madrasas of his Fatih complex ranked the empire's highest — Greek scribes copying Ptolemy, and Gentile Bellini of Venice painting the sultan's portrait in 1480. That portrait fixes the paradox the sources leave: a ruler of exacting Hanafi observance in law who commissioned figural art of himself in the Italian manner — evidence, historians note, of how imperial and Islamic norms negotiated at his court. This platform, per its own rule, reproduces no portraiture; the fact of the painting is the record.
Campaigns & Conflicts
Constantinople 1453 stands first: the two-month siege, the fourteen-mile stone-throwing bombards, the seventy-odd ships hauled over Galata's hill on greased ways, the last Constantine dying at the breach, and the customary three days of sack that the sources — Kritovoulos, Doukas, Tursun Beg — record with their different griefs, checked by the sultan's order preserving the city's fabric for his capital. Belgrade 1456 answered him with defeat under Hunyadi's relief and Capistrano's crusaders — the wound to his thigh and the retreat are in the chronicles.
The list of his campaigns runs nearly year by year: Serbia annexed by 1459; the Morea 1460; the empire of Trebizond extinguished 1461; Wallachia's Vlad Dracula raided and was driven out in the night-attack campaign of 1462; Bosnia 1463 and the long Venetian war (1463–79) with the loss and recovery of Negroponte; Karaman absorbed; Otlukbeli 1473 breaking the Aqquyunlu; Albania ground down after Scanderbeg's death; Caffa and the Crimea 1475, making the khanate a vassal and the Black Sea an Ottoman lake; and in 1480 the double reach — Rhodes repulsed, Otranto taken — that put an Ottoman garrison on Italian soil when he died.
Contested & Debated
The fratricide law is the standing dispute: codified "for the order of the world" with a juristic justification the Kanunname itself supplies, defended by Ottoman statecraft as insurance against the civil wars that had shredded the early dynasty, and condemned in later Ottoman conscience and modern judgment alike; the sources document all three positions. The conquest's sack and the fate of Constantinople's population — enslavement, ransom, resettlement — are recorded plainly by all sides' chroniclers, as is the sultan's swift re-population policy that brought Greeks, Armenians, and Jews back under charter; the balance between the two is argued, the facts are not.
His execution of Candarli Halil began a pattern — viziers as expendable servants — that Ottoman historiography itself debated; his fiscal confiscations of waqf and freehold drew the empire's jurists into documented protest, reversed by his son. And the Bellini portrait with the wider figural patronage remains the classic case in Islamic art history's debate over image and power — a controversy of interpretation, carried here as such.
Legacy
Mehmed refounded an empire around a city: Istanbul as he rebuilt it — Topkapi, the Fatih complex, the repopulated ports — remained the capital of the Ottoman world for four and a half centuries, and the conquest of 1453 stands among the dates by which world history is periodized, the event Europe took for the fall of Rome and Islam took for the fulfilled tiding of the Prophet. The state he codified — kanun beside sharia, the devshirme establishment, the patriarchates under charter — is the classical Ottoman order in outline.
In Islamic memory he is Fatih: mosque, bridge, and district bear the name in Istanbul today, and the hadith of the conquest keeps his cause alive in devotional citation. In European memory he was the Grand Turk — terror, fascination, and eventually the model of the tolerant conqueror in Enlightenment retellings. The historiography, like his court, has never belonged to one civilization alone.