Eleanor of Austria
Eleanor of Austria (15 November 1498 – 25 February 1558), also called Eleanor of Castile, was born an Archduchess of Austria and Infanta of Castile from the House of Habsburg, and subsequently became Queen consort of Portugal (1518–1521) and of France (1530–1547).
She also held the Duchy of Touraine (1547–1558) in dower.
She is called "Leonor" in Spanish and Portuguese and "Eléonore" or "Aliénor" in French.
Diogo, Duke of Viseu
Infante Diogo of Viseu( 1450 – 1484) was the second son of Ferdinand, Duke of Viseu, and his wife Beatriz, Duchess of Viseu.
Dinis of Braganza, Count of Lemos
Dinis of Braganza( 1481 – 1516) was the younger son of Fernando II, Duke of Braganza and Isabella of Viseu who was a daughter of Infante Fernando, Duke of Viseu and Beatrice of Portugal.
Isabel of Viseu
Isabel of Viseu( 1459 – 1521) was a daughter of Infante Fernando, Duke of Viseu and his wife and cousin Infanta Beatrice, Duchess of Viseu.
She was a member of the House of Aviz and later, House of Braganza.
Maria Breunner-Enkevoith
Maria, Duchess of Ratibor, Princess of Corvey, Princess of Hohenlohe- Schillingsfürst( Maria Agathe Augusta Gobertina Hubertina; née Countess Maria von Breunner- Enckevoirth, 23 August 1856 – 25 June 1929) was an Austrian aristocrat and consort of Victor II.
Infante Miguel, Duke of Viseu
Infante Dom Miguel, Duke of Viseu( born 3 December 1946) is a member of the Portuguese royal family, as the second child of Duarte Nuno, Duke of Braganza, and Princess Maria Francisca of Orléans- Braganza.
The Duke of Viseu is fourth in the Line of succession to the former Portuguese throne, behind his elder brother, Duarte Pio, Duke of Braganza, and his three children.
The Duke of Viseu is a noted patron of the arts and painter, and the founder and sponsor of the annual Luso- Brazilian Week of Aldravist Art, held interchangeably between Portugal and Brazil.
He is also an active member in various orders of chivalry, notably the Sovereign Military Order of Malta and the Sacred Military Constantinian Order of Saint George.
Maria, Duchess of Gloucester and Edinburgh
Maria, Duchess of Gloucester and Edinburgh( née Maria Walpole; 10 July 1736 – 22 August 1807) was Countess Waldegrave from 1759 to 1766 as the wife of James Waldegrave, 2nd Earl Waldegrave, and a member of the British royal family from 1766 as the wife of Prince William Henry, Duke of Gloucester and Edinburgh.
Maria of Portugal, Duchess of Viseu
Maria of Portugal, Duchess of Viseu (18 June 1521 – 10 October 1577 in Lisbon) was an Infanta of Portugal, the only daughter of King Manuel I of Portugal and Eleanor of Austria.
A noted patron of the arts, Maria's personal wealth rivaled that of the king, her brother (John III of Portugal), making her the richest woman in Portugal and one of the richest in Europe.
Maria Wirtemberska
Princess Maria Czartoryska, also formerly known as Duchess Maria, Duchess Louis of Württemberg( March 15, 1768, Warsaw – October 21, 1854, Paris), was a Polish noble, writer, and philanthropist.
João, Duke of Viseu
Infante João of Viseu( c. 1448 1472) was the older son of Infante Fernando, Duke of Viseu and of his wife Infanta Beatrice of Portugal.
In 1470, following his father's death, he inherited the titles of Duke of Viseu and Duke of Beja, as well as the Lordships of Covilhã and Moura.
He also became Master of the Order of Christ and of the Order of Santiago, becoming also Constable of Portugal.
In July 1472, his uncle, King Afonso V granted him the Moroccan city of Anfa( in Portuguese" Anafé").
He died young and single, without issue.
His brother, Infante Diogo, inherited his titles and estates.

Question: Which country Maria Of Portugal, Duchess Of Viseu's mother is from?
Answer: Spanish