In 1440 he was elected German king as Frederick IV and in 1452 crowned Holy Roman Emperor as Frederick III by Pope Nicholas V. In 1452, at the age of 37, he married the 18-year-old Infanta Eleanor, daughter of King Edward of Portugal, whose dowry helped him to alleviate his debts and cement his power.

* Infanta Eleanor of Aragon ( Zaragoza, 13 July 1378 Zaragoza, 1378 )

John had lost his wife, Infanta Eleanor of Aragon the year before, and was happy to wed the Portuguese heiress.

John had lost his wife, Infanta Eleanor of Aragon the year before, and was happy to wed the Portuguese heiress.

Audley was married second to Eleanor de Holland, an illegitimate daughter of Edmund Holland, 4th Earl of Kent by Constance of York, daughter of Edmund of Langley, 1st Duke of York and Infanta Isabella of Castile.

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 ).

An Infanta of Castile, Archduchess of Austria and Princess of Burgundy, Catherine was the posthumous daughter of Philip of Hapsburg by Joanna of Castile She was born in Torquemada and remained with her disturbed mother until the arrival in Spain from Flanders of her eldest siblings, Eleanor of Austria and the future Emperor Charles V. All of her five older siblings except Ferdinand ( the future Emperor Ferdinand I, were born in the Low Countries and had been put into the care of their aunt Margaret of Austria, but Joanna kept hold of her young daughter Catherine.

The Infanta Catarina ( 1436 – 1463 ; (; ) was a Portuguese infanta ( princess ), daughter of King Edward of Portugal and his wife Eleanor of Aragon.

* Eleanor of Viseu ( 1458 – 1525 ), aka Eleanor of Viseu or Eleanor of Lancaster, daughter of Infante Ferdinand, Duke of Viseu and Infanta Beatrice, Duchess of Viseu, wife of John II of Portugal

The Infanta Maria, Duchess of Viseu ( Lisbon, 18 June 1521 – Lisbon, 10 October 1577 ; ; ) was a Portuguese infanta ( princess ) daughter of King Manuel I and his wife Eleanor of Austria.

He was the second but eldest surviving son of Sancho I of Portugal by his wife, Dulce, Infanta of Aragon.

The first-born of this union, Infanta Maria of Portugal, married King Alfonso XI of Castile in 1328, at the same time that Afonso IV's heir, Peter I of Portugal, was promised to another Castilian infanta, Constance of Peñafiel.

Infanta Benedita of Portugal was also named after him.

* March 31 – Infanta Mariana Victoria of Spain, queen regent of Portugal ( d. 1781 )

* August 15 – Infanta Isabella of Portugal, Queen of Castile and León ( b. 1428 )

** Infanta Sancha of Portugal ( b. 1264 )

* April 25 – Infanta Branca of Portugal, daughter of King Afonso III of Portugal and Urraca of Castile ( d. 1321 )

In Portugal, forks began being used with Infanta Beatrice, Duchess of Viseu, king Manuel I of Portugal's mother.

A daughter of Karl-Theodor, Duke in Bavaria, and his wife, the Infanta Maria Josepha of Portugal, she was born at Possenhofen Castle, Bavaria, Germany, on 25 July 1876, and died on 23 November 1965.

In 1677, during his mother's regency she tried to arrange a marriage between Victor Amadeus and his first cousin Infanta Isabel Luísa of Portugal, the presumptive heiress of her father, Peter II and Victor Amadeus ' aunt.

Despite a marriage contract being signed between Portugal and Savoy on 15 May 1679, the marriage between Victor Amadeus and the Infanta came to nothing and was thus cancelled.

She held the titles of Infanta of Spain and of Portugal and Archduchess of Austria.

o Venturoso ), King of Portugal and the Algarves ( Alcochete, May 31, 1469 – December 13, 1521 in Lisbon ) was the son of Infante Ferdinand, Duke of Viseu, ( 1433 – 1470 ), by his wife, Infanta Beatrice of Portugal.

The marriage of John's sister, Infanta Isabella of Portugal, to Emperor Charles V enabled the Portuguese king to forge a stronger alliance with Spain and the Holy Roman Empire.

In 1473, he married Leonor of Viseu, Infanta of Portugal and his first cousin.

Of his wife, Leonor of Viseu, Infanta of Portugal John II had two sons, but only one of them survived childhood.

His godfather was the Emperor Franz Joseph I of Austria ( represented by Archduke Franz Ferdinand of Austria ); his godmother was his grandmother Infanta Maria Antonia of Portugal.

Born as the seventeenth child of the dispossessed Robert I, Duke of Parma and his second wife Infanta Maria Antonia of Portugal, Zita married the then Archduke Charles of Austria in 1911.

Duke Robert became a widower in 1882, and two years later he married Infanta Maria Antonia of Portugal, Zita's mother.

* Alexander Farnese ( 27 August 15453 December 1592 ), 3rd Duke of Parma ; married Infanta Maria of Portugal and had issue.

In 1951, Dom Duarte visited Portugal for the first time accompanied by his aunt the Infanta Filipa.

The Order of the Golden Fleece (; ; ; ; ) is an order of chivalry founded in Bruges by Philip III, Duke of Burgundy in 1430, to celebrate his marriage to the Portuguese princess Infanta Isabella of Portugal, daughter of King John I of Portugal.

Infanta Dona Ana de Jesus Maria of Portugal (; English: full name: Ana de Jesus Maria Luís Gonzaga Joaquina Micaela Rafaela Francisca Xavier de Paula de Bragança e Bourbon ; Mafra, 23 October 1806 – Rome, 22 June 1857 ) was a Portuguese infanta and youngest daughter of King John VI of Portugal and his wife Carlota Joaquina of Borbón.

Infanta Urraca of Portugal (; ( 1151 – 1222 ) was a Portuguese infanta ( princess ), daughter of Afonso I, 1st King of Portugal and his wife Maud of Savoy.

Infante Dom John of Portugal (; ) ( 1349 – 1397 ) was the son of the Portuguese King Peter I and a Galician noblewoman called Inês de Castro who had arrived in Portugal as a maid of Infanta Constance of Castile, recently married to Pedro I ( royal heir at the time ).

Infanta Beatrice of Portugal (; ) was the daughter of Portuguese King Peter I and a Galician noblewoman called Inês de Castro.

To ensure the alliance, his son Sancho was engaged to Dulce, sister of the Count of Barcelona and Infanta of Aragon.

Archduke Charles of Austria, Duke of Teschen (, also known as Karl von Österreich-Teschen ) ( Full name: Karl Ludwig Johann Josef Lorenz of Austria ) ( 5 September 1771 – 30 April 1847 ) was an Austrian field-marshal, the third son of emperor Leopold II and his wife Infanta Maria Luisa of Spain.

James, who was supportive of Frederick, and had been seeking marriage between the new Prince of Wales and the Spanish Infanta, Maria Anna of Spain, since Prince Henry's death, began to see the Spanish Match as a possible means of achieving peace in Europe.

Maria was already an adult woman at the time of the marriage, while the Infanta was still a young girl.

Infante | Infanta Mariana Victoria of Spain | Maria Anna Victoria of Spain, to whom Louis was engaged.

In 1721, Louis XV was betrothed to his first cousin, Infanta Maria Anna Victoria of Spain.

The eleven-year-old king was not interested in the arrival of his future wife, the three-year-old Spanish Infanta.

Toward the end of his life there were rumours, not all untrue, that he was romantically attached to the Spanish Infanta María del Pilar, daughter of Queen Isabella II of Spain ; she died two months after Louis Napoléon.

Victor Amadeus was himself in line to succeed on the account of the dowry of his great grandmother Infanta Catherine Michelle of Spain not being paid on her marriage in 1582 to Charles Emmanuel I, Duke of Savoy.

Carlo Emanuele Ferdinando Maria di Savoia was born in Turin, the eldest son of Victor Amadeus III of Savoy, King of Sardinia and of his wife Infanta Maria Antonietta of Spain.

The young Louis XV of France would marry the three-year old Infanta Mariana Victoria who would thus become Queen of France ; the Infante Luis would marry the fourth surviving daughter of the Philippe, Louise Élisabeth d ' Orléans ; and the Infante Charles would be engaged to the pretty Philippine Élisabeth d ' Orléans who was the fifth surviving daughter of Philippe.

Anne of Austria ( 22 September 1601 – 20 January 1666 ) was Queen consort of France and Navarre, regent for her son, Louis XIV of France, and a Portuguese and Spanish Infanta by birth.

He was the second son of Leopold, then Grand-Duke of Tuscany, and his wife Infanta Maria Luisa of Spain.

The inspiration for the " Amadis de Gaula " appears to be the blocked marriage of Infanta Constanza of Aragon with Henry of Castile in 1260 ( See Juan Manuel's Libro de las Armas of 1335 ), as blocked was also Oriana's marriage to Amadis.

This settlement was the condition of his marriage on 5 August 1764 with Infanta Maria Luisa of Spain, daughter of Charles III of Spain and Maria Amalia of Saxony.