Neşerek Kadınefendi was born in 1848 in the North Caucasus on the coast of Black Sea situated in Sochi, in an Ubykh princely family. Born as Nesrin Zevş-Barakay, she was the daughter of Prince Ismail Bey Zevş-Barakay (1812 - 1876) son of Prince Vordezokue Bey Zevş-Barakay. Nesrin had two brothers, Prince Hasan Bey Zevş-Barakay and Prince Osman Pasha Zevş-Barakay aide to Sultan Abdul Hamid II. Her aunt was the wife of Ateş Mehmed Pasha.

In 1859 a Circassian community gather and a delegation was sent to Istanbul. The representatives in the delegation were: Huşt Hasan Bey from the Shapsugs, Güstanokue İsmail Bey from the Natukhai, Barasbi Hacı Hajbek Bey from the Abzakh and Nesrin's father. The purpose of the delegation was to supply Russian crimes in the Caucasus to the sultan. By the end of this, the four Circassian Beys were gifted large lands in the Ottoman Empire and were requested to stay. Nesrin's father was given a land in Silivri. His family emigrated from the Caucasus to Istanbul.

In 1868 Nesrin married Abdülaziz at the Dolmabahçe Palace, Istanbul. The marriage was due to her father's efforts to establish political alliance between the Ottoman Empire. She was renamed Neşerek and was given the title of Dördüncü Kadınefendi. However, before marrying Neşerek, Sultan Abdülaziz wanted to marry Princess Tevhide Hanım from the Muhammad Ali Dynasty but the marriage was obstacle by Grand Vizier Mehmed Fuad Pasha, who was a relative of Princess Tevhide Hanım.

...
Wikipedia