From what I understand, in the earlier rough and martial times, sultans were mostly busy campaigning and had relatively few sons, who would occupy various military and government posts when they reached adulthood. Upon sultan’s death, the sons were expected to fight it out to determine the successor, and this occasional period of instability or even civil war was considered normal. I suppose the brothers would prepare for that moment as best they could.
As the rulers became more decadent and started spending more time siring numerous children with their harems, while the government system became less hands-on, their sons effectively became prisoners of palace factions, which were the real powers clashing over succession on sultan’s death. Once in charge, the new sultan would have no problem killing his captive and powerless brothers. (Sometimes, if he was without sons, he’d keep them alive until he got a son to make sure the dynasty doesn’t die out.) Often the slaughter was extended to other family members as well, just to make sure.
Later the custom was made more merciful, and the brothers would be kept imprisoned for life instead. This institution also served as a reserve of potential successors in case the sultan and his sons died out unexpectedly.
From what I understand, in the earlier rough and martial times, sultans were mostly busy campaigning and had relatively few sons, who would occupy various military and government posts when they reached adulthood. Upon sultan’s death, the sons were expected to fight it out to determine the successor, and this occasional period of instability or even civil war was considered normal. I suppose the brothers would prepare for that moment as best they could.
As the rulers became more decadent and started spending more time siring numerous children with their harems, while the government system became less hands-on, their sons effectively became prisoners of palace factions, which were the real powers clashing over succession on sultan’s death. Once in charge, the new sultan would have no problem killing his captive and powerless brothers. (Sometimes, if he was without sons, he’d keep them alive until he got a son to make sure the dynasty doesn’t die out.) Often the slaughter was extended to other family members as well, just to make sure.
Later the custom was made more merciful, and the brothers would be kept imprisoned for life instead. This institution also served as a reserve of potential successors in case the sultan and his sons died out unexpectedly.