Who married Khulan khatun?

Khulan (Mongolian: ᠬᠤᠯᠠᠨ, romanized: qulan; Chinese: 忽蘭; pinyin: Hūlán; c. 1164 – c. 1215) (also called Qulan) was an empress consort of Genghis Khan and head of the second Court of Genghis Khan. Her status in the Mongol Empire was second only to Grand Empress Börte.