Title: Cem Sultan
Content:  Cem Sultan or Sultan Cem (December 22, 1459 – February 25, 1495, ;, Cem Sultan, also referred to as Jem Sultan, or Zizim by the French), was a claimant to the Ottoman throne in the 15th century. Cem was the third son of Sultan Mehmed II and younger half-brother of Sultan Bayezid II, and thus a half-uncle of Sultan Selim I of Ottoman Empire. After being defeated by Bayezid, Cem went in exile in Egypt and Europe, under the protection of the Mamluks, the Knights Hospitaller of St. John on the island of Rhodes, and ultimately the Pope.
Title: Cem Sultan
Content:  Cem was born on December 22, 1459 in Edirne. His mother was Çiçek Hatun. In accordance with the custom for an Ottoman prince (şehzade, şehzāde ) Cem was appointed to a provincial governorship of Kastamonu in 1469. In December 1474, Cem replaced his deceased brother Mustafa as governor of Karaman in Konya.
Title: Cemile Sultan
Content:  Cemile Sultan was born on 17 August 1843 in the Old Beylerbeyi Palace. Her father was Sultan Abdulmejid I, and her mother was Düzdidil Kadın. She was the ninth daughter and eleventh child of her father and fourth child of her mother. She had three elder sisters, Mevhibe Sultan three years elder then her, twin elder sisters Neyyire Sultan and Münire Sultan, two years elder then her, and a younger sister Samiye Sultan. In 1845, Düzdidil Kadın, died leaving Cemile Sultan motherless at the age of two. Abdulmejid took her to another of his wives, Perestu Kadın, and entrusted her into the lady's care. She grew up together with her half brother Abdul Hamid II, who was also adopted by Perestu, in the same household and spend their childhoods with one another. In accordance with the custom, Cemile Sultan began to take lessons in the Quran in 1847, together with her half-sisters Fatma Sultan, and Refia Sultan, and brothers Murad and Abdul Hamid.
Title: Cem Sultan
Content: Consort: Gülşirin Hatun ; Sons: Cem had two sons: ; Şehzade Oğuzhan (murdered by Bayezid II, Istanbul, 1482); ; Şehzade Murad (murdered by Suleiman the Magnificent, Rhodes, December 1522), married and had two daughters; ; Daughters: Cem had two daughters: ; Gevhermülük Sultan, married firstly in 1496 to Damat Sultan An-Nasir Muhammad, son of Qaitbay, married secondly in 1503 to Damat Sinan Pasha Beylerbey of Anatolia; ; Ayşe Sultan, married in 1503 to Damat Mehmed Bey, son of Sinan Pasha, Sanjak-bey of Ioannina 
Title: Cemile Sultan
Content:  Cemile Sultan (17 August 1843 – 26 February 1915) was an Ottoman princess, the daughter of Sultan Abdulmejid I and Düzdidil Kadın. She was the half sister of Sultans Murad V, Abdul Hamid II, Mehmed V, and Mehmed VI.
Title: Cemile Sultan
Content:  Cemile Sultan died at Erenköy, Istanbul on 26 February 1915 at the age of seventy one, and was buried in the mausoleum of her father, Sultan Abdulmejid.
Title: Esma Sultan (daughter of Abdul Hamid I)
Content:  Esma Sultan was born on 16 July 1778 in the Topkapı Palace. Her father was Abdul Hamid I and Her mother was Sineperver Sultan. She had an elder brother Şehzade Ahmed two years elder then her, a younger brother named Mustafa IV one year younger then her, and a younger sister named Fatma Sultan four years younger then her. When she was 11 years old, her father died. Since Mustafa was only 10 years old at the time of his father’s death. Selim III ascended to the throne as the eldest male member of the Ottoman Empire. She followed her mother to the old palace. When she was 14 her cousin Selim III married her to Küçük Huseyn Pasha. Esma Sultan spend her time in her childhood by reading books, musical instruments and games, her mother, Sineperver, was most likely to manage these entertainments in her apartment.
Title: Cem Sultan
Content:  The Mamlūk sultan Qāʾit Bāy (r. 1468–1496) received Cem with honour in Cairo, and Cem took the opportunity to go on pilgrimage to Mecca. (He is the only Ottoman prince to have made the pilgrimage.) In Cairo, Cem received a letter from his brother, offering Cem one million akçes (the Ottoman currency) to stop competing for the throne. Cem rejected the offer, and in the following year he launched a campaign in Anatolia under the support of Kasım Bey (Qāsım Beğ), heir of the ruling house of Karaman, and the sanjek bey of Ankara. On May 27, 1482, Cem besieged Konya but was soon defeated and forced to withdraw to Ankara. He intended to give it all up and return to Cairo but all of the roads to Egypt were under Bayezid's control. Cem then tried to renegotiate with his brother. Bayezid offered him a stipend to live quietly in Jerusalem but refused to divide the empire, prompting Cem to flee to Rhodes on July 29, 1482.
Title: Kösem Sultan
Content: Şehzade Mehmed (11 March 1605 - 12 January 1621), disputed son of Kösem and Ahmed. ; Murad IV (26/27 July 1612 – 8 February 1640), sultan from 20 January 1623 until his death ; Şehzade Süleyman (1613 – murdered 27 July 1635). ; Şehzade Kasım (early 1614 – 17 February 1638), heir apparent since 1635 ; Ibrahim (5 November 1615 – 18 August 1648), sultan from 9 February 1640 until 12 August 1648 Gevherhan Sultan ; Ayşe Sultan ; Fatma Sultan ; Hanzade Sultan Kösem's sons were: Kösem's daughters were:
Title: Pretender
Content:  Cem Sultan, eldest of the sons of Mehmet the Conqueror born during his reign, claimed the Sultanate after the death of his father, he was defeated in battle months later by his eldest brother (by birth) Bayezid II. He fled to the island of Rhodes, then eventually to the Papal States. His descendants claimed his rights until Malta defeated the Ottomans in the 16th century. After the Ottoman Empire was abolished and the Republic of Turkey came into power, the successive heads of the Ottoman family claimed the throne of the Turkish empire. The latest pretender to the Imperial House of Osman is Harun Osman, since January 18, 2021.

Question: Who is the father of Sultan Cem?
Answer: Mehmed the Conqueror.
Mehmed bin Murad Khan.
Mehmed II.
Mehmet II.