Maria of Amnia
Maria of Amnia (770 – after 823) was a Byzantine empress, the first wife of Constantine VI.
She was a granddaughter of Saint Philaretos, a magnate from the Armeniakon Theme known for his charitable activities, a relation mentioned in his hagiography.
The name of her father is unknown and her mother has been identified as Hypatia by Christian Settipani.
Maria was born in Amnia, Paphlagonia.
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.
Julia Warhola
Julia Warhola( November 20, 1891 — November 22, 1972) was the mother of the American artist Andy Warhol.
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.
Anna Komnene Angelina
Anna Komnene Angelina or Comnena Angelina( c. 1176 – 1212) was an Empress of Nicaea.
She was the daughter of the Byzantine Emperor Alexios III Angelos and of Euphrosyne Doukaina Kamatera.
Minamoto no Chikako
She was the mother of Prince Morinaga.
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.
Euphrosyne (9th century)
Euphrosyne (Greek: Εὐφροσύνη; 790 – after 836), was a Byzantine empress by marriage to Michael II.
She was a daughter of Byzantine emperor Constantine VI, the last representative of the Isaurian dynasty, and his empress Maria of Amnia.
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.

Question: What is the place of birth of Euphrosyne (9Th Century)'s mother?