Constance of Portugal. Queen Constance of Castile.

Constance of Portugal and Aragon (b. 1290 - d. Sahagun 1313) Infanta of Portugal andQueen consort of Castile by her marriage to King Ferdinand IV of Castile "The Set".

The daughter of Dionysius The Lauborer king of Portugal and of Isabella of Aragon and Sicily, was the paternal granddaughter of Alphonsus III of Portugal and Beatriz of Castile. Mother's side was the granddaughter of Peter III the Great, King of Aragon andConstance of Sicily, Queen of Sicily. She was the sister of Alphonsus IV of Portugal, King of Portugal.

In 1291 established the engagement between young Constance and Prince Ferdinand of Castile. On January 23, 1302 Constance and Ferdinand married in the Cathedral of Valladolid.5 years later, shortly after the birth of her first child, Infanta Eleanor, Ferdinand, who wasbesieging the town of Tordehumos, where the rebels had taken refuge Juan Nunez deLara Minor (Lord of the House of Lara), sent his wife, Queen Constance accompanied by her newborn daughter (Eleanor)) to request such a loan to her father, King Dionysius I of Portugal.

In the year 1311 when King was taken very ill at Valladolid despite the opposition of Constance wanted to remove to Carrión de los Condes, in order to control the monarchnext to her ally, Juan Nunez de Lara The Minor. During the illness of the king, the queengave birth to a boy, who would rule with the name of Alphonsus XI. Constance entrustedthe care of the little prince the prince Peter of Castilla y Molina, brother of King Ferdinand IV of Castile.

Juan Nunez de Lara the Less then tried to seize the boy king, who was in the city ofÁvila. However, prevented by the city authorities, prevented by Queen Maria de Molina.Shortly after the infant reached Pedro Avila and refused to let him enter the city.Meanwhile, the infant John and Juan Nunez de Lara Minor, who were in Burgos,summoned the nobles, solicitors and councils of the realm to gather together inSahagun, while the infant Peter obtained the approval of Queen Mary Molina to beguardian of his nephew Alfonso XI during his minority. When the infant John, who was atSahagún with the attorneys of the kingdom, knew of the proximity of the infant Pedro of Castile, was offended to various witnesses, thereby causing the Infante Pedro decides to go against them. The infant John and his companions then sent the Infante Philip of Castile, brother of Pedro Infante, to parley with the latter, who rebuked his brother forpart of the side of the infant Juan de Castilla "the Fee". The prince Felipe de Castillaintroduced his mother, Queen Maria de Molina, the proposals of the infant John,consisting she was guardian of King Alfonso XI along with the infant and the infant JohnPeter, to which she agreed .

In late 1313, one day after having given her the will, which named executors to his parents, the King of Portugal, died Queen Constance, mother of Alphonsus XI of Castile, at the age of 23 years, which caused the infant John and his supporters to decide toagree with Queen Mary of Molina, offering it to play the position of guardian of the King.

After the death of Constance in the town of Sahagun was buried in the Monastery ofSaint Benedict el Real, in the same city.