Infanta Branca of Portugal (25 February 1259 – 17 April 1321; ˈbɾɐ̃kɐ), Blanche in English, was a Portuguese infanta (princess), eldest daughter of King Afonso III

Afonso III of Portugal

Afonso III , or Affonso , Alfonso or Alphonso or Alphonsus , the Bolognian , the fifth King of Portugal and the first to use the title King of Portugal and the Algarve, from 1249...

 and his second wife Beatrice of Castile

Beatrice of Castile (1242-1303)

Beatrice Alfonso of Castile-León was the second Queen consort of Afonso III of Portugal. She was an illegitimate daughter of Alfonso X of Castile and his mistress Mayor Guillén de Guzmán.She was married to Afonso III in 1253...

. She was named after her great-aunt Blanche of Castile

Blanche of Castile

Blanche of Castile , was a Queen consort of France as the wife of Louis VIII. She acted as regent twice during the reign of her son, Louis IX....

, queen of France.

Branca was born in Guimarães

Guimarães

Guimarães Municipality is located in northwestern Portugal in the province of Minho and in the Braga District. It contains the city of Guimarães.The present Mayor is António Magalhães Silva, elected by the Socialist Party.-Parishes:-Economy:...

, Kingdom of Portugal

Kingdom of Portugal

The Kingdom of Portugal was Portugal's general designation under the monarchy. The kingdom was located in the west of the Iberian Peninsula, Europe and existed from 1139 to 1910...

. She became a nun at the Convent of Lorvão

Lorvão

Lorvão is a parish in Penacova Municipality, Portugal....

 in Portugal, and after that she became the Abbess of the Convent of Huelgas in Castile, where she was called the Lady and Keeper of the Convent. She was titled Viscountess of Huelgas.

She died in Burgos

Burgos

Burgos is a city of northern Spain, historic capital of Castile. It is situated at the edge of the central plateau, with about 178,966 inhabitants in the city proper and another 20,000 in its suburbs. It is the capital of the province of Burgos, in the autonomous community of Castile and León...

, Crown of Castile

Crown of Castile

The Crown of Castile was a medieval and modern state in the Iberian Peninsula that formed in 1230 as a result of the third and definitive union of the crowns and parliaments of the kingdoms of Castile and León upon the accession of the then King Ferdinand III of Castile to the vacant Leonese throne...

.

According to Argote de Molina and de Gandara she had a natural son by a Castilian nobleman named Pedro Esteves Carpinteiro:

• Dom João Nunes de Prado, who was a Master of the Order of Calatrava
  Order of Calatrava
  The Order of Calatrava was the first military order founded in Castile, but the second to receive papal approval. The papal bull confirming the Order of Calatrava as a Militia was given by Pope Alexander III on September 26, 1164.-Origins and Foundation:...
  
   and served King Alfonso XI of Castile
  Alfonso XI of Castile
  Alfonso XI was the king of Castile, León and Galicia.He was the son of Ferdinand IV of Castile and his wife Constance of Portugal. Upon his father's death in 1312, several disputes ensued over who would hold regency, which were resolved in 1313...
  
   and his son King Pedro of Castile
  Pedro of Castile
  Peter , sometimes called "the Cruel" or "the Lawful" , was the king of Castile and León from 1350 to 1369. He was the son of Alfonso XI of Castile and Maria of Portugal, daughter of Afonso IV of Portugal...
  
  , who had him killed at Almagro
  Almagro, Ciudad Real
  Almagro is a city situated in Ciudad Real province, in the autonomous community of Castile-La Mancha, Spain.A tourist destination, Almagro is an important Historical-Artistic Zone ....
  
  . He had two sons who originated family de/do Prado.

Ancestry