Whilst "sultan" is often Employed in Islamic contexts, the person ruler's adherence to Islam could change. Sultanate of Zanzibar: two incumbents (in the Omani dynasty) Considering that the de facto separation from Oman in 1806, the final assumed the title Sultan in 1861 in the formal separation underneath British auspices;[citation https://sultan66king00099.targetblogs.com/33422753/not-known-details-about-sultan-66