Sultan Alauddin Riayat Shah was a prominent ruler of the Malacca Sultanate in the 15th century. He is known for his efforts to strengthen the sultanate's power and expand its influence in Southeast Asia. His reign marked a period of prosperity, trade, and cultural exchange, making Malacca a vital hub for merchants from various regions. Under his leadership, the Malacca Sultanate became a significant center for Islam in the region. Sultan Alauddin also focused on improving the administration and military, ensuring the protection of his territory against external threats. His legacy continues to be celebrated in the history of Malaysia.