Stan Rice
Stan Rice( November 7, 1942 – December 9, 2002) was an American poet and artist.
He was the husband of author Anne Rice.
Serfiraz Hanım
Serfiraz Hanım( born Princess Ayşe Liah; 1837 – 9 June 1905) was the sixteenth wife of Sultan Abdulmejid I of the Ottoman Empire.
Naciye Hanım
Naciye Hanım( born Zeliha Ankuap; 1882 – 4 December 1924) was the thirteenth, and last wife of Sultan Abdul Hamid II of the Ottoman Empire.
Filizten Kalfa
Filizten Kalfa (1865 – 1945; born Princess Naime Çabalar-Çaabalurhva) was a lady-in-waiting to Sultan Murad V of the Ottoman Empire.
Stan Marks
Stan Marks is an Australian writer and journalist.
He is the husband of Holocaust survivor Eva Marks.
Jon Leach
Jonathan Leach( born April 18, 1973) is a former professional tennis player from the United States.
He is the husband of Lindsay Davenport.
Sazkar Hanım
Sazkar Hanım( born Zekiye Maan; 8 May 1873 – 1945) was the ninth wife of Sultan Abdul Hamid II of the Ottoman Empire.
Ceylanyar Hanım
Ceylanyar Hanım( born Nefiye Berzeg; 1830 – 23 April 1856) was the fifteenth wife of Sultan Abdulmejid I of the Ottoman Empire.
Nesrin Hanım
Nesrin Hanım( born Adile Asemiani; 1826- 2 January 1853) was the eleventh wife of Sultan Abdulmejid I of the Ottoman Empire.
Murad V
Murad V 
(21 September 1840 – 29 August 1904) was the 33rd Sultan of the Ottoman Empire who reigned from 30 May to 31 August 1876.
He was born in Istanbul.
His father was Abdulmejid I.
His mother, whom his father married in Constantinople on 1 August 1839, was Şevkefza Valide Sultan, an ethnic Circassian from the Ubykh tribe, daughter of Mehmed Bey Zaurum and his wife Cemile Hanım.

Question: What is the place of birth of Filizten Kalfa's husband?
Answer: Istanbul