The Sultanate of Rum Makes Konya a Turkish Capital
A Seljuk successor state fuses Persian administration, Turkish armies, and Islamic law into a new Anatolian order
Quick facts
- Founded
- 1077 CE, by Suleiman ibn Qutalmish
- Capital
- Konya (Iconium)
- Reduced to Mongol vassalage
- 1243 CE, Battle of Kose Dag
- Fragmented into
- Anatolian beyliks, including the Ottoman beylik
What happened
In the wake of Manzikert, Suleiman ibn Qutalmish declared an independent Seljuk state in Anatolia in 1077, first based at Nicaea and later at Konya, ancient Iconium, giving rise to what became known as the Sultanate of Rum, literally the Sultanate of Rome, since it occupied former Byzantine territory. The state combined Persian administrative traditions with Turkish military organization and Islamic institutions, ruling over a population that still included Christians, Armenians, and Greeks alongside its Turkish and Muslim subjects. It reached its height in the late 12th and early 13th centuries, taking key Byzantine ports on the Mediterranean and Black Sea coasts, before a decisive Mongol victory at the Battle of Kose Dag in 1243 reduced it to a vassal of the Mongol Ilkhanate. By the late 13th century the sultanate had fragmented into a patchwork of local Turkish principalities called beyliks, one of which, in the empire's far northwest, belonged to a minor chieftain named Osman.
Why it matters
The Sultanate of Rum turned a military victory at Manzikert into an actual governing state, giving Anatolia its first sustained Turkish administration and its first majority-Turkish demographic core, replacing Byzantine Christian and Greek-speaking Asia Minor with the Turkish and Muslim Anatolia that exists today. Its later fragmentation into competing beyliks set the stage directly for the Ottoman beylik's rise.
How we know
The Sultanate of Rum's establishment, capital moves, and eventual fragmentation are documented in Islamic-era Anatolian chronicles and confirmed by Seljuk architecture and inscriptions surviving in Konya and other former Rum territories, along with independent Mongol-era records of the 1243 Battle of Kose Dag.
Sources
- Federal Research Division, Library of Congress. Turkey: A Country Study (Library of Congress Country Studies), Ch. 1 · General sourcecountrystudies.us · Cited as a "reference" source (no stronger domain match). · Link is live and its text matches the event's key terms (Jul 2026)
- World History Encyclopedia. Osman I · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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Related timelines
- The Byzantine Empire → · The Sultanate of Rum took its name and much of its early territory from Byzantium; see the Byzantine Empire timeline for the empire's shrinking hold on Anatolia across these same centuries.