This state’s penultimate ruler wrote poetry under the pseudonym Gulrukhi. A ruler of this state fixed prices and banned hoarding with the Shahana-i-Mandi and Diwan-i-Riyasat systems. The Tomar dynasty lost Gwalior Fort (-5[1])to this state after the death of Maan Singh. Bughra Khan refused leadership of this state to keep his governorship; his inept son Qaiqabad (“KYE-kuh-bahd”) became ruler instead and fell to the Khalji Revolution. The Qutb Minar’s construction was started by this state’s founder, Qutb-ud-Din (10[1])Aibak. Razia Sultan ruled this state, (10[1])which reached its greatest extent under Muhammad bin Tughluq. This sultanate’s last ruler, Ibrahim Lodi, was defeated (10[1])at the First Battle of Panipat by Babur. For 10 points, the Mughals succeeded what Islamic sultanate that was ruled from a namesake city in (10[1])northern (10[1])India? ■END■