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Events on Saturday 19 November 1092 3
1055 – 1092Malik-Shah I (1055-1092)Died 19 November 1092, aged 37Malik-Shah I was the Seljuk sultan who presided over the empire at its greatest territorial extent, stretching from Anatolia to Central Asia. He died suddenly near Baghdad, days after dismissing his longtime vizier Nizam al-Mulk, amid widespread suspicion of poisoning. His death triggered an immediate succession war among his sons that fractured the Seljuk state.
1092Omar Khayyam's patron Sultan Malik-Shah diesDeath of the sultan a month after his vizierMalik-Shah died in November 1092, about a month after Nizam al-Mulk was murdered. Khayyam lost the second of the two patrons who had supported his astronomical work.
1092Seljuk Empire succession war beginsSons of Malik-Shah fight for the throneFollowing the deaths of vizier Nizam al-Mulk and Sultan Malik-Shah I within weeks of each other, the Seljuk Empire descended into open conflict between rival claimants including Barkiyaruq, Mahmud I, and Tutush I. The war permanently weakened central Seljuk authority over Persia, Iraq, and Syria. Regional atabegs and governors used the chaos to carve out increasingly independent power bases.