The Sultanate of Deli was a 1,820 km² Malay state in east Sumatra founded in 1630. A tributary kingdom from 1630 it was controlled by various Sultanates until 1814, when it became an independent sultanate and broke away from the Sultanate of Siak.

Ali Mughayat Syah was the first Sultan of Aceh Darussalam in Northern Sumatra, reigning from about 1514 until his death. His reign not only saw the foundation of the Aceh Sultanate, but also the conquest of neighboring Daya (1520), Pidie (1521), and Pasai (1524). Despite his accomplishments, Ali Mughayat's life is poorly documented and must be pieced together from various Acehnese, Malay and European accounts.