Şehzade Mehmed (Ottoman Turkish: شہزادہ محمد; 11 March 1605 – 12 January 1621) was an Ottoman prince and the second son of Sultan Ahmed I, but his first with Kösem Sultan, Ahmed's favorite concubine, Haseki and probably legal wife.

[4] After his father's death in 1617, when Mehmed was twelve years old,[1] his uncle Sultan Mustafa I ascended the throne.

[5] Osman had asked the Şeyhülislam Hocazade Esad Efendi for an affirmative legal opinion to execute his brother.

The Chief Judge of Rumeli Kemaleddin Efendi instead affirmed the execution of the prince.

"[9]Twelve days following his death, a harsh snow fall in Istanbul which was considered as Allah’s message to Osman that he killed his brother.