Although "sultan" is often used in Islamic contexts, the individual ruler's adherence to Islam may vary. Sultanate of Zanzibar: two incumbents (through the Omani dynasty) Because the de facto separation from Oman in 1806, the last assumed the title Sultan in 1861 in the official separation beneath British auspices;[citation desired] https://sultan6612110.shoutmyblog.com/31673365/sultan-66-an-overview