Answer: Ruknuddin Barbak Shah
Notes: Ruknuddin Barbak Shah (1459-74) of the Ilyas Shahi dynasty organized an Ethiopian slave militia and recruited Arab soldiers. His general, Ismail Shah, conquered Kamrup. Barbak's army invaded Purnea and strengthened Bengal's control over Jessore-Khulna. He patronized architecture, commissioning mosques and madrasas, and promoted Persian culture and literature, marking a period of military expansion and cultural development in Bengal.
