List of Famous people named Alaeddin

Alaeddin Bey, or Alaeddin Pasha, was the half-brother of Orhan I, who succeeded their father, Osman I Ghazi, in the leadership of the Ottoman Empire. His mother was a Turkish woman named Rabia Bala Hatun. It is not certain whether Alaeddin or Orhan was the elder son. Some historians claim that Alaeddin was Osman's second son, but others argue that there is a good chance that he was the oldest. Nevertheless, Orhan ruled the country and became the first Ottoman ruler to take the title of Sultan. According to tradition and Ottoman historiography as presented by historian Idris Bitlisi, Alaeddin was more passive than his energetic, warrior half-brother, and thus stayed at home instead of fighting to expand the newly forming Ottoman Empire. He received training in the management of state affairs. There is a good chance that Orhan was selected to inherit leadership of the Empire because of his skills as a warrior.

Alaeddin Pasha was the first Ottoman grand vizier. His father's name was Kemalettin, and thus he was usually called Hacı Kemalettin oğlu Alaeddin Pasha or Alaeddin bin Hacı Kemalletin, meaning "son of Hacı Kemalettin" He was probably from the town of Cendere, from where the famous Çandarlı family also originated. He was a faqih. He was appointed as the vizier during the last years of Osman I's reign. He continued during Orhan's Bey's reign. Since there was only one vizier in the divan during the early years of the Ottoman beylik, his title was not actually grand vizier, but his post was equivalent to the post of the later grand viziers. Because of this, he is known as the first grand vizier of the Ottoman Empire.