August 26, 1071

Battle of Manzikert

Seljuq victory and the capture of Romanos IV at Manzikert

An emperor ended the day wounded and a prisoner — but most of his supposedly annihilated army was still alive.

Friday, 26 August 1071

The Byzantine army commanded by Emperor Romanos IV Diogenes fought Sultan Alp Arslan's Seljuq forces near Manzikert, in medieval Armenia, on Friday 26 August 1071, and was defeated.

Alp Arslan had been campaigning in Syria, with Egypt as the larger strategic objective. Romanos's eastward march to recover frontier strongholds forced him to hurry north and fight with what he could gather quickly.

The army that was not destroyed

The Byzantine formation disintegrated late in the fighting, but large parts of the rear guard and of both wings escaped. Modern scholarship rejects the older picture of the whole imperial army being wiped out.

Unit-level work puts the losses at roughly 5 to 10 percent of a campaigning army modern estimates place near 40,000 — an estimate, since no headcount survives. The 35,000 in the old entry is not securely documented.

Eight days in the victor's camp

Romanos kept fighting with his immediate retinue, was wounded, and was taken alive into Seljuq custody. That retinue is where the worst losses fell.

Alp Arslan did not keep him. Romanos negotiated and was released after eight days — and returned to face a political challenge from the Doukas regime.

The scene in which the sultan sets a foot on the captive emperor's neck belongs to the event's later narrative tradition, not to any secure eyewitness record.

Sources

Researched 23 Aug 2026 6 sources 2 audit passes

How this was checked

Researched from the web into a fact sheet, rewritten from that sheet, then audited against it by a different model. How the pipeline works →

What the sources leave uncertain

The date is unusually firm: Persian/Arabic calendrical evidence identifies Friday, 27 Dhu al-Qada 463, corresponding to 26 August 1071.
No reliable headcount survives. The listed 35,000 and the article’s roughly 40,000 should not be presented as equally precise facts; about 40,000 is a modern logistical estimate.
Sources disagree over the sequence of battlefield movements and whether Andronikos Doukas’s withdrawal was deliberate treachery, self-preservation or later scapegoating.
The humiliation story in which Alp Arslan placed a foot on Romanos’s neck belongs to the event’s later narrative tradition and should not be narrated as an uncontested eyewitness fact.