–1648), also known as Şehzade Yahya (sometimes spelled Jachia or Jahja), was an impostor and a self-claimed pretender to the Ottoman throne who claimed to be the son of Sultan Murad III.
Yahya's mother Safiye was concerned that this could also eventually happen to him after the death of his father, so he was smuggled out of the empire, first to Greece, and then to present-day Bulgaria.
From 1603 on, Alexander made frequent trips to northern and western Europe to gain support for his claim to the throne (visiting Florence, Madrid, Rome, Kraków, Antwerp, Prague, and other cities).
They had two children, a son and a daughter:[3] In the TV series "Muhteşem Yüzyıl: Kösem" the count Alexander was played by Berk Cankat.
He fell in love with Kösem Sultan, Haseki and legal wife of Ahmed I, but she does not reciprocate his feelings and finally has him killed when he tries to usurp the throne from her sons.