800,000 doblas as a dowry for the marriage. A year later, in October 1340, King Afonso IV helped the Castilian sovereign and had an outstanding participation in the Battle of Salado. Finally, Constance was able to travel to Portugal, in whose entourage was her relative, the Galician noblewoman Inês de Castro, with whom Infante Pedro of Portugal ("an impassioned man, brutal and with a hint of vesanic") quickly fell deeply in love. King Afonso IV complied with the agreement he had with Don Juan Manuel and he gave his daughter-in-law the arras that included the towns of Montemor-o-Novo and Alenquer as well as the city of Viseu as other Queens of Portugal previously received. This letter of arras was issued in Lisbon on 7 July 1340, and the following month, on 24 August, the official wedding were celebrated at Lisbon Cathedral. The love relationship between Infante Pedro and Inês de Castro caused some discomfort among the members of the Royal Council. They were faced with the circumstance that Inês was the sister of two powerful Galician noblemen, Álvaro Pérez de Castro and Fernando de Castro, whose influence in Portugal was felt through their sister. As a way to end the affair of her husband and her relative, when Constanza gave birth her first son, Infante Luiz, she invited Inês to be his godmother. According to the precepts of the Catholic Church at the time, the relationship between the godparent and a parent of the person being baptized was one of moral kinship, and their love would be almost incestuous; however, the child would die within a week, which increased suspicions about Inês de Castro. The adulterous romance would continue and intensified with time, until King Afonso IV exiled the Galician noblewoman to Alburquerque, on the Castilian border, in 1344. This second attempt to separate the lovers did not end the relationship, and Infante Pedro and Inês began living together in secret. Death and burial The traditional date for Constanza's death is 13 November 1345, about two weeks after the birth of the infante Fernando, born on 31 October. However, according to the chronicler Rui de Pina and the Crónica dos Sete Primeiros Reis de Portugal, she died after giving birth to the infanta Maria. The Portuguese writer, bibliographer and genealogist, Antonio Caetano de Sousa, in his work Historia Genealógica de la Real Casa Portuguesa, cites a document from the archive