Abu Ali Salih ibn Mirdas, also known by his laqab Asad al-Dawla, was the founder of the Mirdasid dynasty and emir of Aleppo from 1025 until his death in May 1029. At its peak, his emirate (principality) encompassed much of the western Jazira, northern Syria and several central Syrian towns. With occasional interruption, Salih's descendants ruled Aleppo for the next five decades.
Gold dinar minted in Aleppo in the name of Salih ibn Mirdas and recognizing the suzerainty of Fatimid caliph az-Zahir, 1028/29 CE
Salih was first mentioned in the historical record when he captured the fortress of al-Rahba (pictured in 2005) in 1008. The fortress as depicted in the photograph dates to the 12th century.
Ruins of Balis (pictured in 2005) on the Euphrates River. Between 1009 and 1022, Salih laid the foundations of his emirate by capturing a string of fortress towns along the Euphrates, including Balis, Manbij, al-Rahba, Raqqa and al-Rafiqah
General view of old Aleppo (foreground) and its citadel (background), 2008. Aleppo was the capital of Salih's Mirdasid emirate. The citadel as depicted in the photograph dates to the 12th century.
Al-Rahba, also known as Qal'at al-Rahba, which translates as the "Citadel of al-Rahba", is a medieval Arab fortress on the west bank of the Euphrates River, adjacent to the city of Mayadin in Syria. Situated atop a mound with an elevation of 244 meters (801 ft), al-Rahba oversees the Syrian Desert steppe. It has been described as "a fortress within a fortress"; it consists of an inner keep measuring 60 by 30 meters, protected by an enclosure measuring 270 by 95 meters. Al-Rahba is largely in ruins today as a result of wind erosion.
The ruins of the al-Rahba fortress, 2005
The fortress of al-Rahba as seen from the city of Mayadin
The Governor of al-Rahba. Maqamat of al-Hariri, Baghdad, 1237.