Question: Why did Terken Khatun (Wife Of Ala Ad-Din Tekish)'s husband die?
Sentence (from "Terken Khatun (wife of Ala ad-Din Tekish)"): ("the Queen of the Turks") was the Empress of the Khwarazmian Empire by marriage to Shah Ala ad-Din Tekish, and the mother and "de facto" co-regent of Muhammad II of the Khwarazmian Empire.
Relevant evidence: Yes