February 3
Mehmed II Ascends Ottoman Throne
Following the sudden death of Sultan Murad II in Edirne, his son Mehmed reclaimed the Ottoman throne at age eighteen, moving swiftly to stabilize the realm and redirect its energies toward military renewal.
Summary
In the mid-15th century, the Ottoman Empire faced internal challenges following the death of Sultan Murad II amid ongoing rivalries with European powers and Byzantine remnants. His young son Mehmed, previously deposed once before, reclaimed power in Edirne on February 3, 1451, at around age 19. He quickly consolidated authority by addressing Janissary unrest and prioritizing military reforms. Mehmed focused on naval expansion and diplomatic maneuvers to isolate potential adversaries. This ascension set the stage for renewed campaigns against Constantinople. The immediate outcome stabilized the empire's leadership and accelerated preparations for major conquests.
Context
By the mid-fifteenth century the Ottoman state had recovered from the devastating defeat at Ankara in 1402 and expanded its holdings in the Balkans under Murad II. Relations with the Kingdom of Hungary remained tense after the broken Peace of Szeged, and a crusade under John Hunyadi had been defeated at Varna in 1444. Murad had briefly abdicated in favor of his young son that same year before resuming power in 1446, leaving the empire with experienced but fractious institutions, including the Janissary corps and powerful viziers such as Çandarlı Halil Pasha.
What Happened
Murad II died in Edirne on 3 February 1451. Mehmed, then serving as governor in Manisa, traveled to the capital and was proclaimed sultan the same day. He faced immediate pressure from the Janissaries, who traditionally expected generous accession payments; the new ruler met these demands while asserting control over the corps. Diplomatic messages were sent to neighboring rulers, and preparations began for strengthening the fleet and securing the Bosphorus approaches.
Aftermath
The swift transition prevented serious internal challenges and allowed Mehmed to neutralize potential rivals, including threats from the Karamanids and Byzantine offers to release a pretender. Within months the sultan turned to naval expansion and the construction of Rumelihisarı on the European shore of the Bosphorus, tightening Ottoman control over the straits.
Legacy
Mehmed’s uncontested accession removed the last internal obstacles to sustained campaigning and directly enabled the 1453 siege and capture of Constantinople. The conquest ended the Byzantine Empire, shifted the balance of power in the eastern Mediterranean, and established the Ottomans as the dominant force between Europe and the Islamic world for centuries.
Why It Matters
The accession enabled Mehmed's later conquest of Constantinople in 1453, ending the Byzantine Empire and establishing Ottoman dominance in the eastern Mediterranean. It shifted power balances between Christian Europe and Islamic states, influencing centuries of trade, warfare, and cultural exchange across continents.
Related Questions
How old was Mehmed II at his second accession?
Mehmed was eighteen years old, having been born on 30 March 1432.
Why did Murad II abdicate in 1444?
After concluding peace with Hungary, Murad stepped down to allow his son experience and possibly to retire from active rule.
What immediate steps did Mehmed take after becoming sultan in 1451?
He satisfied Janissary demands for payment, asserted authority over the military, and began naval and fortress preparations aimed at Constantinople.
Did the Byzantine Empire attempt to interfere during the transition?
Yes, Emperor Constantine XI threatened to release the Ottoman pretender Orhan Çelebi to create internal disorder.
How quickly did Mehmed move against Constantinople?
Within a year he built Rumelihisarı; the siege itself began in April 1453 and ended on 29 May.
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Sources
- Mehmed II - Wikipedia, Wikimedia Foundation. Accessed 2026-07-08.