Afonso, Prince of Portugal (1526)
Afonso, Prince of Portugal was the first son of king John III of Portugal and his queen, Catherine of Austria.
He was the Prince of Portugal but died in the same year he was born, in 1526.
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.
Infante João, Duke of Beja
Infante João, Duke of Beja( 16 March 1842 – 27 December 1861) was a Portuguese" infante"( prince) and member of the House of Braganza.
Luís of Portugal, Duke of Beja
Infante Luís of Portugal, Duke of Beja (3 March 1506, in Abrantes – 27 November 1555, in Marvila, in Lisbon) was the second son of King Manuel I of Portugal and his second wife Maria of Aragon (the third daughter of the Catholic Monarchs).
He participated in the Conquest of Tunis.
Luís Filipe, Prince Royal of Portugal
D. Luís Filipe, Prince Royal of Portugal, Duke of Braganza,( 21 March 1887 – 1 February 1908) was the eldest son and heir- apparent of King Carlos I of Portugal.
He was born in 1887 when his father was still Prince Royal of Portugal and received the usual style of the heirs to the heir of the Portuguese crown: 4th Prince of Beira at birth, with the subsidiary title 14th Duke of Barcelos.
After his grandfather King Luís I of Portugal died, he became Prince Royal of Portugal with the subsidiary titles 21st Duke of Braganza, 20th Marquis of Vila Viçosa, 28th count of Barcelos, 25th count of Ourém, 23rd count of Arraiolos and 22nd count of Neiva.
Beatriz, Duchess of Viseu
Infanta Beatriz of Portugal( 13 June 1430 – 30 September 1506) was a Portuguese infanta, daughter of John, Constable of Portugal( fourth son of King John I of Portugal and his wife Philippa of Lancaster) and Isabella of Barcelos a daughter of Afonso I, Duke of Braganza.
Infante Francisco, Duke of Beja
Infante Francisco, Duke of Beja , (Lisbon, 25 May 1691 – Lisbon, 21 July 1742) was a Portuguese "infante" (prince) son of Peter II, King of Portugal, and his second wife, Maria Sofia of the Palatinate.
Maria Francisca of Savoy
Dona Maria Francisca of Savoy (Marie Françoise Élisabeth; 21 June 1646 – 27 December 1683) was twice queen consort of Portugal as the spouse of two Portuguese kings:
Afonso VI and Peter II of Portugal.
She first became queen of Portugal at the age of 20 on the day of her marriage to Afonso VI; because the marriage was never consummated, she was able to obtain an annulment.
On 28 March 1668, she married Afonso's brother, the Infante Peter, Duke of Beja, who was appointed prince regent the same year due to Afonso's perceived incompetence.
Maria Francisca became queen of Portugal for the second time when Peter succeeded his brother as Peter II in 1683 but died herself later that year.
Maria of Aragon, Queen of Portugal
Maria of Aragon (29 June 1482 – 7 March 1517) was a Spanish infanta, and queen consort of Portugal as the second spouse of Portuguese King Manuel I.
Ferdinand of Portugal, Duke of Guarda
Ferdinand of Portugal, Duke of Guarda,( 5 June 1507 – 7 November 1534) was a Portuguese" infante"( prince), the son of King Manuel I of Portugal and his second wife, Maria of Aragon.

Question: Which country Luís Of Portugal, Duke Of Beja's mother is from?
Answer: Spanish