The betrothal between Berengaria and Louis of France (signed by contract in Paris on 20 August 1255) wasn't paralyzed, but were also maintaining the succession forecasts[clarification needed] established in the city of Palencia.
In the codicil of the will of Alfonso X, drawn up on 10 January 1284, three months before his death, the monarch confirmed to his eldest daughter Berengaria, who held the Lordship of Guadalajara, the possession of all the goods that he had previously granted her and that her brother, the future King Sancho IV had taken from her.
[4] Berengaria, who according to some sources rejected the marriage proposal of the Sultan of Egypt, because he wasn't a Christian,[5] entered as a nun in the Abbey of Santa María la Real de Las Huelgas of Burgos, founded by King Alfonso VIII of Castile with the purpose of turning it into the necropolis of the Castilian royal family.
In the Convent of Santa Clara of Toro, founded by Berengaria, there is a wooden urn, held aloft by three lions, on one side of the main chapel of the church, and in the center of the wooden urn are painted the royal arms, and sides are written the following verses:[7] On this shelf is covered in mourning, Infanta and Lady of Guadalajara, King Alfonso and his wise and dear wife Violante, a wise monarch of powerful wars.
[8] In 1869, before the demolition of the Monastery of Santo Domingo, a witness saw, located in front of the tomb that contained the remains of infanta Constance, daughter of Ferdinand IV, who was also buried in the monastery, a tombstone which contained the following inscription:[7] HERE LIES THE VERY HIGH AND POWERFUL LADY THE INFANTA BERENGARIA, DAUGHTER OF THE KING ALONSO, INTITULATED THE EMPEROR.The niche that contained the mortal remains in the Monastery of Santo Domingo el Real in Madrid was opened on 23 April 1869, with those present testifying that "the corpse has also been found, also mummified, with a very curious headdress and wrapped in luxurious silk clothing".