TRENDEAtlas of the Sultans · Wars, battles and treaties

Revolt of Mustafa the Pretender

Revolt · 1421

Mustafa Çelebi, who claimed to be a son of Bayezid I, was released by Emperor Manuel when Murad II came to the throne and landed at Gallipoli (15 August 1421). He won over the lords of Rumelia, proclaimed himself ruler at Edirne and struck coins in his name. Marching on Bursa he met Murad II's army at the Ulubat river; when his forces broke up he fled back to Rumelia. As Murad entered Edirne he tried to escape, was caught at Kızılağaç Yenicesi and executed at Edirne (winter 1422).

About the event

Date15 August 1421 – winter 1422
LocationGallipoli, Edirne, Ulubat (near Bursa)
ResultSuppressed; Mustafa Çelebi was caught while fleeing and executed at Edirne
BelligerentsOttoman state (Murad II)Mustafa Çelebi and the lords of Rumelia
Byzantine Empire (supporter)
CommandersMurad IIMustafa Çelebi
Cüneyd Bey

This event in the atlas

Took place during the reign of Murad II (1421–1444). Murad II

Open the reign of Murad II on the map

Context of the period

By the atlas's calculation the Ottoman lands covered about 593,000 km² in 1421; at the start of Murad II's reign they measured 593,000 km², at its end 664,000 km².

During Murad II (1421–1444) the atlas records 4 regions gained and 1 region lost.

Regions gained: Teke–Hamid (Antalya–Isparta–Burdur) (1423), Germiyan (Kütahya–Afyon–Uşak) (1429), Thessaloniki–Chalkidiki–Mount Athos (1430), Ioannina (Epirus) (1430).

Regions lost: Northern Albania (Krujë–Shkodër) (1443).

Murad II in brief

He restored Ottoman rule after the Interregnum: Thessalonica was taken, Germiyan joined and the Eastern Roman Empire (Byzantium) again paid tribute. In 1444, after the peace of Edirne–Szeged, he abdicated and withdrew to Manisa; recalled to lead the army at Varna, he returned to the throne in 1446.

Other battles and treaties of Murad II

In nearby years (1413–1419), under other sultans

Areas are land area computed from the atlas's region data; see Method and sources.

Source: TDV Encyclopedia of Islam, “Mustafa Çelebi, Düzme” (Turkish); text written for the atlas.