Abu Nasr Shams al-Muluk Duqaq (probably died in 1104) was the Seljuk ruler of Damascus from 1095 to 1104. He inherited Damascus and Syria from his father, Tutush I, but Duqaq's older brother Radwan revolted and the realm was split, with Radwan ruling northern Syria from Aleppo. Duqaq was succeeded by Tutush II as the ruler of Damascus.
Abu Nasr Shams al-Muluk Duqaq (died June 8, 1104) was the Seljuk ruler of Damascus from 1095 to 1104.
Duqaq was a son of the Seljuk ruler of Syria, Tutush I, and Khatun Safwat al-Mulk, He was the brother of Radwan.
Duqaq later joined Kerbogha of Mosul to attack the crusaders after they had occupied Antioch in June of 1098, but during the battle, Duqaq's line deserted and Kerbogha was defeated.
Damascus soon became an important center of Christianity and its bishop used to be considered the most important ecclesiastical figure after the Bishop of Antioch.
Byzantine Damascus remained much the same as it had during the Roman period, except for the mass construction of churches and the transformation of the Temple of Jupiter into a cathedral dedicated to St. John the Baptist in the fourth century.
The period between the Memluk takeover in 1260 and the invasion of Tamurlane in 1400 was one of a relative prosperity to Damascus.