Focusing on the famous but understudied figure of the grand vizier Rashid al-Din, a Persian Jew who converted to Islam, Jonathan Z. Brack explores the myriad ways Rashid al-Din and his fellow courtiers investigated, reformulated, and transformed long-standing ideas of authority and power. Out of this intellectual ferment of accommodation, resistance, and experimentation, they developed a completely new understanding of sacred kingship. This new ideal, and the political theology it subtends, would go on to become a central justification in imperial projects across Eurasia in the centuries that followed. An Afterlife for the Khan offers a powerful cultural and intellectual history of this pivotal moment for Islam and empire in the Middle East and Asia.