Sultanate of the Maldive Islands
The Sultanate of the Maldive Islands was an Islamic monarchy that controlled the Maldives for over eight centuries (1153–1968), with one interruption from 1953–1954. Maldives was a Buddhist kingdom until its last monarch, King Dhovemi, converted to Islam in the year 1153; thereafter he also adopted the Muslim title and name of Sultan Muhammad al-Adil.
Source: Wikipedia — Sultanate of the Maldive Islands (CC BY-SA 4.0)