Is Prince Konstantin V Mustafaev from sultan Mustafa IV or Sultan Abdülmecid I?

This theory was confirmed by University of Michigan Department of Turkish Studies and Turkish National Library (mkutup link below)

II. Second theory from The Columbia Encyclopedia stated : Prince Konstantin V Mustafaev (born 1980 - alive) and Prince Malik Sultan Mustafaev ( 1992 - alive) descendants of 32st Sultan of the Ottoman Empire Abdülaziz I, Abdul Aziz I, Abd-ul-Aziz I or Abd Al-Aziz I Ghazi and should be addressed as His Imperial Highness Prince Konstantin V Mustafaev of the Royal House of Osman and His Imperial Highness Prince Malik Sultan Mustafaev.

Sources:1. ^ Chambers Biographical Dictionary, ISBN 0-550-18022-2, page 3

2. ^ The Encyclopædia Britannica, Vol.7, Edited by Hugh Chisholm, (1911), 3; Constantinople, the capital of the Turkish Empire...

3. ^ Britannica, Istanbul:When the Republic of Turkey was founded in 1923, the capital was moved to Ankara, and Constantinople was officially renamed Istanbul in 1930.

4. ^ Slavery in the Ottoman Empire, Putnam's Monthly, vol. V, June 1855, No. 30, p. 615

5. ^ Istanbul City Guide: Beylerbeyi Palace

6. ^ Why crescentstar on Drogheda Utd emblem?

7. ^ Gratitude to the Ottomans

8. ^ Goodwin, Jason (2008). The Bellini Card. London: Faber and Faber. pp. 10-14. ISBN 978-0571239924.

7. ^The Royal House of Osman - History of the Ottoman Empire

The Ottoman Empire: Resources - University of Michigan

(umich link below)