Complex sentence: Following Ögedei's death, khatuns (queens) briefly ruled the Mongol Empire; most of these women were not Genghis Khan's daughters, but his daughters or granddaughters-in-law.
Split into simpler sentences: Following Ögedei's death, khatuns (queens) briefly ruled the Mongol Empire. Most of these women were not Genghis Khan's daughters, but his daughters-or granddaughters-in-law.