
Mentally unstable sultan, twice deposed.
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Mustafa I was deposed by a Janissary revolt after only three months on the throne. The Janissaries, dissatisfied with his mental instability, replaced him with his nephew Osman II. This was the first time a sultan was deposed due to mental incapacity.
After the murder of Osman II, Mustafa I was reinstated as sultan by the Janissaries. His second reign lasted only 14 months, during which he was unable to govern effectively due to his mental condition, leading to chaos in the empire.
Mustafa I was deposed for a second time by the Janissaries and replaced by his nephew Murad IV. He was returned to confinement (kafes), where he lived until his death in 1639. This ended his troubled reign.
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