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.
Beatrice, Countess of Alburquerque
Beatrice of Portugal was Countess of Alburquerque as the wife of Sancho Alfonso of Alburquerque.
She was the daughter of Peter I of Portugal and his wife Inês de Castro.
Beatrice of Naples
Beatrice of Naples( 16 November 1457 – 23 September 1508), also known as Beatrice of Aragon, was twice Queen of Hungary and of Bohemia by marriage to Matthias Corvinus and Vladislaus II.
She was the daughter of Ferdinand I of Naples and Isabella of Clermont.
John I of Castile
John I (24 August 1358 – 9 October 1390) was king of the Crown of Castile from 1379 until 1390.
He was the son of Henry II and of his wife Juana Manuel of Castile.
He was the last monarch of Castile to receive a formal coronation.
Peter I of Portugal
Peter I( Portuguese:" Pedro I"( 8 April 1320 – 18 January 1367), called the Just or the Cruel( Portuguese:" o JustoO Cruel"), was King of Portugal from 1357 until his death.
He was the third but only surviving son of Afonso IV of Portugal and his wife, Beatrice of Castile.
Eleanor of Portugal, Queen of Aragon
Eleanor of Portugal( 1328- 30 October 1348), was a Portuguese" infanta" and queen consort of Aragon from 1347 to 1348.
The youngest daughter of King Afonso IV of Portugal and Beatrice of Castile, Leonor was the granddaughter of King Denis and Elizabeth of Aragon and of Sancho IV of Castile and Maria de Molina and sister of King Peter I of Portugal.
Beatrice of Portugal
Beatrice (7–13 February 1373 –) was the only surviving legitimate child of King Ferdinand I of Portugal and his wife, Leonor Teles.
She became Queen consort of Castile by marriage to King John I of Castile.
Following her father's death without a legitimate male heir, she claimed the Portuguese throne, but lost her claim to her uncle, who became King John I of Portugal, founder of the House of Aviz.
During her early years, Beatrice was a pawn in the changing politics of foreign alliances of her father, who negotiated successive marriages for her.
She would eventually marry King John I of Castile, by whom Beatrice became Queen consort of Castile.
At the death of her father, Beatrice was proclaimed Queen regnant of Portugal and her mother assumed the regency in her name.
Opposition to the regency, fear of the Castilian domination and loss of Portuguese independence led to a popular rebellion and civil war between the late King Ferdinand
I's illegitimate brother, John of Aviz, who wrested control of the regency from the dowager queen, and the supporters of Beatrice and her husband, John I of Castile, who claimed the throne of Portugal by right of his wife.
In 1385, John of Aviz was proclaimed King of Portugal, and the King of Castile was definitively defeated in the Battle of Aljubarrota, effectively ending any prospects for Beatrice and her husband to assert their rights to the Portuguese crown.
From that time, Queen Beatrice took a special interest in the welfare of the Portuguese exiles in Castile who had been faithful to her dynastic claim to the Portuguese throne.
After the death of her husband she was relegated to a secondary level in the Castilian court.
However, the dynastic strife continued represent a challenge to the normalization of relations between Castile and Portugal.
From the second decade of the 15th century onwards, her documentary trail became scarce until she completely disappears about 1420.
Maria of Portugal, Queen of Castile
Maria of Portugal  (9 February 1313 – 18 January 1357) was a Portuguese princess who became Queen of Castile upon her marriage to Alfonso XI in 1328.
She was the first daughter of King Afonso IV of Portugal and his first wife Beatrice of Castile.
Manuel, Prince of Portugal (1531–1537)
Manuel, Prince of Portugal( 11 November 1531 – 14 April 1537), was the Prince of Portugal from 1535 to his death in 1537.
He was the fifth child son of king John III of Portugal and Catherine of Austria.
In 1535, his father officially designated him as Prince of Portugal, taking the place of his eldest sister Infanta Maria Manuela.
However, after his premature death at five years old, his younger brother Infante Filipe became the next Prince of Portugal.
Beatrice of Silesia
Beatrice of Silesia( also known as Beatrice of Świdnica;,; 1290 – 25 August 1320) was a Polish princess member of the House of Piast in the Silesian branch of Jawor- Świdnica and by marriage Duchess of Bavaria and German Queen.

Question: What nationality is Beatrice Of Portugal's husband?