Minamoto no Chikako
She was the mother of Prince Morinaga.
Julia Warhola
Julia Warhola( November 20, 1891 — November 22, 1972) was the mother of the American artist Andy Warhol.
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.
Erika Rosenberg
Erika Rosenberg( born 24 June 1951 in Buenos Aires, Argentina) is an author, interpreter and journalist.
She wrote a biography of Emilie Schindler.
Lord Edmund Howard
Lord Edmund Howard( – 19 March 1539) was the third son of Thomas Howard, 2nd Duke of Norfolk, and his first wife, Elizabeth Tilney.
His sister, Elizabeth, was the mother of Henry VIII's second wife, Anne Boleyn, and he was the father of the king's fifth wife, Catherine Howard.
His first cousin, Margery Wentworth, was the mother of Henry's third wife, Jane Seymour.
Kekuʻiapoiwa II
Kekuʻiapoiwa II was a Hawaiian chiefess and the mother of the king Kamehameha I.
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.
Emilie Hegh Arntzen
Emilie Hegh Arntzen (born 1 January 1994) is a Norwegian handball player for Vipers Kristiansand and the Norwegian national team.
She previously played for Herkules, Gulset and Gjerpen IF.
She made her debut on the national team in 2014.
She also represented Norway in the 2013 Women's Junior European Handball Championship, placing 4th, and in the 2014 Women's Junior World Handball Championship, placing 9th.
She is the daughter of former international handballer Hanne Hegh and handball player and coach Ketil Arntzen.
Hanne Hegh
Hanne Hegh (born 27 April 1960 in Oslo) is a Norwegian team handball player and Olympic medalist.
Lomawa Ndwandwe
laNgolotsheni( Lomawa) Ndwandwe( died September 1938) was the Ndlovukati( Queen Mother) of Swaziland, the wife of King Ngwane V, and the mother of King Sobhuza II.

Question: Where was the mother of Emilie Hegh Arntzen born?
Answer: Oslo