Philip, Prince of Portugal
Filipe, Prince of Portugal( 25 March 1533 – 29 April 1539), was the Prince of Portugal from 1537 to his death in 1539.
He was the sixth child son of king John III of Portugal and Catherine of Austria.
In 1537, he succeeded his brother Prince Manuel as Prince of Portugal, after his premature death.
However, after his own premature death, two years later, after reaching six years old, his younger brother Infante João Manuel became the next Prince of Portugal.
Isabel of Coimbra
Infanta Isabel of Coimbra( Isabella of Portugal)
( 1 March 1432 – 2 December 1455) was a Portuguese infanta and a queen consort of Portugal as the first spouse of King Afonso V of Portugal.
Prince Karl Anton of Hohenzollern
Prince Karl Anton of Hohenzollern- Sigmaringen( 1 September 1868 – 21 February 1919) was a member of the Princely House of Hohenzollern- Sigmaringen.
Karl Anton was the third and youngest son of Leopold, Prince of Hohenzollern and his wife Infanta Antónia of Portugal.
Karl Anton's elder brothers were William, Prince of Hohenzollern and Ferdinand I of Romania.
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.
Infanta Maria Antonia of Portugal
Infanta Maria Antónia of Portugal
( Portuguese:" Maria Antónia Adelaide Camila Carolina Eulália Leopoldina Sofia Inês Francisca de Assis e de Paula Micaela Rafaela Gabriela Gonzaga Gregória Bernardina Benedita Andrea"; 28 November 1862 – 14 May 1959) was a Portuguese infanta, the seventh and last child of Miguel of Portugal and Adelaide of Löwenstein- Wertheim- Rosenberg.
Infanta Antónia of Portugal
Infanta Antónia of Portugal (or of Braganza; ; "Antónia María Fernanda Micaela Gabriela Rafaela Francisca de Assis
Ana Gonzaga
Silvéria Júlia Augusta de Saxe-Coburgo e Bragança"; 17 February 1845 – 27 December 1913) was a Portuguese "infanta" (princess) of the House of Braganza, daughter of Queen Maria II of Portugal and her King consort Ferdinand II of Portugal.
Through her father, she also held the titles of Princess of Saxe-Coburg and Gotha and Duchess of Saxony.
William, Prince of Hohenzollern
William, Prince of Hohenzollern( 7 March 1864 in Schloss Benrath, near Düsseldorf – 22 October 1927 in Sigmaringen) was the eldest son of Leopold, Prince of Hohenzollern and Infanta Antónia of Portugal.
William was an older brother of Ferdinand of Romania.
His maternal first cousins included( among others)
Carlos I of Portugal, Infante Afonso, Duke of Porto, Frederick Augustus III of Saxony, and Princess Maria Josepha of Saxony.
Between 1880 and 1886, William was heir presumptive to the Romanian throne.
On 20 December 1886, he renounced his rights to the throne in favor of his brother Ferdinand.
Maria II of Portugal
"Dona" Maria II (4 April 1819 – 15 November 1853) "the Educator"  or "the Good Mother" , reigned as Queen of Portugal from 1826 to 1828, and again from 1834 to 1853.
Born in Rio de Janeiro, she was the first child of Emperor Pedro I of Brazil and his first wife, Empress Maria Leopoldina, and thus a member of the House of Braganza.
One of the two surviving children born when Pedro was still heir apparent to Portugal, she inherited Portuguese titles and was placed in the line of succession to the former Portuguese throne, even after becoming a member of the Brazilian Imperial Family, from which she was excluded in 1835 after her definitive ascension to the Portuguese throne.
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.
Cristóvão de Morais
Cristóvão de Morais was a 16th-century Portuguese court painter for the kings John III of Portugal and Sebastian I of Portugal.
He painted numerous portraits for the kings, queens, and princes of Portugal.

Question: Which country Infanta Antónia Of Portugal's mother is from?