Sheikh Bedreddin

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Sheikh Bedreddin Mahmud bin Israel bin Abdulaziz (Ottoman Turkish: شیخ بدرالدین; 1359–1420) was an influential mystic, scholar, theologian, and revolutionary. He is best known for his role in a 1416 revolt against the Ottoman Empire, in which he and his disciples posed a serious challenge to the authority of Sultan Mehmed I and the Ottoman state.