Julia Warhola
Julia Warhola( November 20, 1891 — November 22, 1972) was the mother of the American artist Andy Warhol.
Somnjalose Simelane
Somnjalose Simelane was the mother of King Sobhuza I and wife of King Ndvungunye.
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.
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.
Regintrud
Regintrud, also known as Reginlind and Regentrud, (born 660–665, died 730–740)
probably was the wife of Duke Theodbert of Bavaria or of his father Duke Theodo of Bavaria.
A possibly identical "Regintrud" became abbess of Nonnberg Abbey in 720–725.
However, details about her ancestry and life are widely disputed among historians.
According to differing views, Regintrud was either a daughter of King Dagobert I, or of Pfalzgraf Hugobert and Irmina of Oeren, or of Childebert III.
Irmina of Oeren
Irmina of Oeren or Irmina of Trier (d. 704/710) was the wife of Hugobert, seneschal and Count palatine, a leading person of the Hugobertine noble family.
While during the High Middle Ages she was believed to be a daughter of King Dagobert II, her parents are actually unknown.
Today it is assumed that she came from a powerful Austrasian noble family, strongly connected to the Carolingian dynasty.
Irmina and Hugobert had several children, including:
After Hugobert's death, the widowed Irmina founded, with support from the Bishop of Trier, the Abbey of Echternach by donating (c. 697/698) lands to Willibrord.
She also committed herself to a religious life for the remaining years and became second abbess of St. Mary's convent in Oeren (today a part of Trier) which was later renamed after her: "St. Irmina" (or "St. Irminen").
Irmina died at an uncertain date between 704 and 710.
Minamoto no Chikako
She was the mother of Prince Morinaga.
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.
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.
Kekuʻiapoiwa II
Kekuʻiapoiwa II was a Hawaiian chiefess and the mother of the king Kamehameha I.

Question: Where was the mother of Regintrud born?
Answer: Trier