Jaunpur Sultanate
The Jaunpur Sultanate was a late medieval Indian Muslim state which ruled over much of what is now the Indian states of Uttar Pradesh and Bihar and southern Nepal between 1394 and 1494. It was founded in 1394 by Khwajah-i-Jahan Malik Sarwar, a eunuch slave and former wazir of Sultan Nasiruddin Muhammad Shah, amidst the disintegration of the Delhi Sultanate under ruling Tughlaq dynasty. Centred in Jaunpur, the sultanate extended authority over a large part of the Ganges-Yamuna Doab. It reached its greatest height under the rule of Sultan Ibrahim Shah, who also vastly contributed to the development of Islamic education in the Sultanate.