Although "sultan" is commonly Utilized in Islamic contexts, the individual ruler's adherence to Islam may perhaps change. Sultanate of Zanzibar: two incumbents (from your Omani dynasty) Because the de facto separation from Oman in 1806, the last assumed the title Sultan in 1861 with the formal separation beneath British auspices;[citation https://sultan6691110.blogdal.com/33353566/sultan66-an-overview