Sandip Ray
Sandip Ray (born 8 September 1953) is an Indian film director and music director who mainly works in Bengali cinema.
He is the only child of the noted Bengali director Satyajit Ray and Bijoya Ray.
Minamoto no Chikako
She was the mother of Prince Morinaga.
Ian Barry (director)
Ian Barry is an Australian director of film and TV.
Fatima bint Mubarak Al Ketbi
Fatima bint Mubarak Al Ketbi is the third wife of Sheikh Zayed bin Sultan Al Nahyan, the founder and inaugural president of United Arab Emirates, and late emir( ruler) of Abu Dhabi.
She is referred to as the mother of sheikhs and as the Mother of the UAE.
Susan B. Nelson
Susan B. Nelson( April 13, 1927 – May 4, 2003) was an American environmental activist who is best known as the mother of the Santa Monica Mountains National Recreation Area.
Trinidad Tecson
Trinidad Perez Tecson (November 18, 1848 – January 28, 1928), known as the "Mother of Biak-na-Bato" and "Mother of Mercy", fought to gain Philippines independence.
She was given the title "Mother of Biak-na-Bato" by Gen. Emilio Aguinaldo.
She was also cited as the "Mother of the Philippine National Red Cross" for her service to her fellow Katipuneros.
Nishijapon
Nishijapon (After the Night... Dawn) (2005) is a Bengali film directed by Sandip Ray, based on a novel of the same name by Narayan Gangopadhyay.
Kekuʻiapoiwa II
Kekuʻiapoiwa II was a Hawaiian chiefess and the mother of the king Kamehameha I.
Dana Blankstein
Dana Blankstein- Cohen( born March 3, 1981) is the director of the Israeli Academy of Film and Television.
She is a film director, and an Israeli culture entrepreneur.
Peter Levin
Peter Levin is an American director of film, television and theatre.

Question: Who is the mother of the director of film Nishijapon?
Answer: Bijoya Ray