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.
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.
Pedro I of Brazil
Dom Pedro I (English:
Peter I; 12 October 1798 – 24 September 1834), nicknamed "the Liberator", was the founder and first ruler of the Empire of Brazil.
As King Dom Pedro IV, he reigned briefly over Portugal, where he also became known as "the Liberator" as well as "the Soldier King".
Born in Lisbon,
Pedro I was the fourth child of King Dom João VI of Portugal and Queen Carlota Joaquina, and thus a member of the House of Braganza.
When the country was invaded by French troops in 1807, he and his family fled to Portugal's largest and wealthiest colony, Brazil.
The outbreak of the Liberal Revolution of 1820 in Lisbon compelled
Pedro I's father to return to Portugal in April 1821, leaving him to rule Brazil as regent.
He had to deal with threats from revolutionaries and insubordination by Portuguese troops, all of which he subdued.
The Portuguese government's threat to revoke the political autonomy that Brazil had enjoyed since 1808 was met with widespread discontent in Brazil.
Pedro I chose the Brazilian side and declared Brazil's independence from Portugal on 7 September 1822.
On 12 October, he was acclaimed Brazilian emperor and by March 1824 had defeated all armies loyal to Portugal.
A few months later, Pedro I crushed the short-lived Confederation of the Equator, a failed secession attempt by provincial rebels in Brazil's northeast.
A secessionist rebellion in the southern province of Cisplatina in early 1825, and the subsequent attempt by the United Provinces of the Río de la Plata to annex it, led the Empire into the Cisplatine War.
In March 1826, Pedro I briefly became king of Portugal before abdicating in favor of his eldest daughter, Dona Maria II.
The situation worsened in 1828 when the war in the south resulted in Brazil's loss of Cisplatina.
During the same year in Lisbon, Maria II's throne was usurped by Prince Dom Miguel,
Pedro I's younger brother.
The Emperor's concurrent and scandalous sexual affair with a female courtier tarnished his reputation.
Other difficulties arose in the Brazilian parliament, where a struggle over whether the government would be chosen by the monarch or by the legislature dominated political debates from 1826 to 1831.
Unable to deal with problems in both Brazil and Portugal simultaneously, on 7 April 1831
Pedro
I abdicated in favor of his son Dom Pedro II, and sailed for Europe.
Pedro I invaded Portugal at the head of an army in July 1832.
Faced at first with what seemed a national civil war, he soon became involved in a wider conflict that enveloped the Iberian Peninsula in a struggle between proponents of liberalism and those seeking a return to absolutism.
Pedro I died of tuberculosis on 24 September 1834, just a few months after he and the liberals had emerged victorious.
He was hailed by both contemporaries and posterity as a key figure who helped spread the liberal ideals that allowed Brazil and Portugal to move from absolutist regimes to representative forms of government.
Infanta Maria Anna of Portugal (1843–1884)
Infanta Maria Ana of Portugal( or of Braganza;; full name:" Maria Ana Fernanda Leopoldina Micaela Rafaela Gabriela Carlota Antónia Júlia Vitória Praxedes Francisca de Assis Gonzaga")( 21 August 1843 – 5 February 1884) was a Portuguese" infanta"( princess), the eldest surviving daughter of Queen Maria II of Portugal and her King consort Ferdinand II of Portugal, a member of the House of Braganza.
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.
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.
Auguste, Duke of Leuchtenberg
Auguste Charles Eugène Napoléon, Duke of Leuchtenberg( 9 December 1810 – 28 March 1835) was the first prince consort of Maria II of Portugal.
Besides being the 2nd Duke of Leuchtenberg and 2nd Prince of Eichstätt, he also held the Brazilian noble title of Duke of Santa Cruz.
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.
Afonso III of Portugal
Afonso III( rare English alternatives:" Alphonzo" or" Alphonse"), or" Affonso"( Archaic Portuguese)," Alfonso" or" Alphonso"( Portuguese- Galician) or" Alphonsus"( Latin), the Boulonnais( Port." o Bolonhês"), King of Portugal( 5 May 121016 February 1279) was the first to use the title" King of Portugal and the Algarve", from 1249.
He was the second son of King Afonso II of Portugal and his wife, Urraca of Castile; he succeeded his brother, King Sancho II of Portugal, who died on 4 January 1248.
Infante Fernando of Portugal
Infante Fernando of Portugal(" Fernando Maria Luís de Saxe- Coburgo- Gotha e Bragança"; 23 July
1846 – 6 November 1861) was the fourth son of Queen Maria II of Portugal and King- consort Fernando II and a member of the House of Braganza.

Question: What is the cause of death of Maria Ii Of Portugal's father?
Answer: tuberculosis