Zumurrud Khatun (Arabic: زمرد خاتون) (died after 1139), was the regent of Damascus between 1135 and 1138.
Zumurrud Khatun commissioned her own mamluk soldiers to assassinate her son in her presence in the citadel of Damascus on 14 February 1135.
The elite explicitly greeted them both as rulers: To receive the oath of loyalty in this manner was almost unique for a woman in a Muslim state, but the Caliph did not contest her position and she was allowed to continue as formal regent of her son.
This act caused the commander Baswaj and other elites to protest directly to her, which demonstrates that she was the acknowledged ruler of the state.
Unable to turn down this political match, she married him and abandoned her regency and moved to Aleppo.