TRENDEFRARAtlas of the Sultans · Wars, battles and treaties
Treaty · 1823
Using as a pretext the search of the caravan of the shah's wife on pilgrimage, the Iranian crown prince Abbas Mirza crossed the border in autumn 1821, took Kars and Bayazıt and besieged Erzurum; at the same time Iranian troops attacked northern Iraq and the province of Baghdad, taking Sulaymaniyah and besieging Kirkuk. According to the TDV articles on Iran and Erzurum, Ottoman resistance and a cholera epidemic in the Iranian army forced Iran to withdraw and sue for peace. The Treaty of Erzurum, signed on 28 July 1823, ended the war, and Iran returned the places it had taken. Border disputes continued, and a second Treaty of Erzurum was made in 1847.
| Signed | 28 July 1823 |
|---|---|
| Place of signing | Erzurum |
| Parties | Ottoman Empire, Qajar Iran |
Border disputes continued; the Second Treaty of Erzurum was signed in 1847.
Took place during the reign of Mahmud II (1808–1839). Mahmud II
Open the reign of Mahmud II on the mapBy the atlas's calculation the Ottoman lands covered about 4,549,000 km² in 1823; at the start of Mahmud II's reign they measured 4,551,000 km², at its end 3,803,000 km².
During Mahmud II (1808–1839) the atlas records 0 regions gained and 6 regions lost.
Regions lost: Cyclades (Naxos) (1821), Morea (Peloponnese) (1828), Akhaltsikhe (Childir) (1828), Athens–Central Greece (1829), Algiers (1830), Euboea (Negroponte) (1833).
He recentralised the state: he abolished the Janissaries and founded modern ministries, schools and the census. The territorial losses were heavy (Greece, Algiers, Bessarabia), but the administrative structure he built made the Tanzimat possible.
Areas are land area computed from the atlas's region data; see Method and sources.
Source: TDV Encyclopedia of Islam, “ERZURUM” (Turkish); text written for the atlas.
Cite as: Atlas of the Sultans, “First Treaty of Erzurum (1823): Terms, Date and Outcome”, https://padisahlaratlasi.com/en/events/first-treaty-of-erzurum/ (last updated 12 November 2026). Corrections