The Ilyas Shahi dynasty was a ruling dynasty in the region of Bengal, which is now part of modern-day Bangladesh and West Bengal in India. It was established in the 14th century and lasted until the late 15th century. The dynasty is known for its contributions to the cultural and architectural development of Bengal, including the construction of mosques and other structures. The Ilyas Shahi rulers were of Turkic origin and played a significant role in the spread of Islam in the region. They maintained a relatively stable rule and engaged in trade with neighboring regions, which helped to enhance the economy of Bengal during their reign.