Salah Bey ben Mostefa (Arabic: صالح باي; born 1725 in Izmir, died 1792 in Constantine), was the bey of the Beylik of Constantine in the Deylik of Algiers from 1771 to 1792, and one of the most famous in the province. Salah Bey's governance is marked by a victorious participation against the Invasion of Algiers (1775) during the Spanish-Algerian war (1775-1785) and his works of urban planning in Constantine. An example of remaining construction from his era is Bab El Kantra Bridge.

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Quick Facts Bey, Bey of Constantine ...

Salah ben Mostefa Bey
صالح باي
Portrait of Salah Bey
Bey of Constantine
In office 1771-1792
Appointed by	Muhammad V
Monarchs	Muhammad V (1771-1790) Sidi Hassan (1790-1792)
Preceded by	Ahmed Bey el Kolli
Succeeded by	Hussein Bey Ben Bou-Hanek
Military service
Years of service	1755-1771
Unit	Odjak of Algiers
Battles/wars	Capture of Tunis (1756) Spanish-Algerian war Invasion of Algiers (1775)

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• Salah Bey Viaduct is a cable-stayed bridge that spans the gorge valley of the Rhummel in Constantine, North East Algeria.
• Salah Bey Mosque is a mosque in Annaba, Algeria. It was built between 1791 and 1792.
• Salah Bey is a town and commune in Sétif Province in north-eastern Algeria.