The saga narrates how King Håkon sent a delegation to Castile in 1255 where they presented gifts to the court of falcons, furs, and leather.

The Norwegian envoys were well received by the Spanish court and the next year when they returned to Norway, they were accompanied by representatives of Alfonso X, King of Castile, León and Galicia – headed by the royal notary, Sira Ferrant.

At Palencia, the Norwegians were officially met by King Alfonso who accompanied them to the city of Valladolid on 3 January 1258, "where she was warmly welcomed by all the townspeople, the nobility, and the clergy who were gathered there for the Cortes".

[6] Infante Philip and Christina of Norway were married on 31 March 1258 in the Santa Maria la Mayor church (The Cathedral of Valladolid now exists on the site).

The parish priest at Covarrubias, Father Rufino Vargas Blanco, was shown a piece of written parchment that was found in the casket.

The lid was replaced, later to be officially opened in 1958, partially based upon a 1757 church manuscript that indicated this as the resting place of Infanta Christina.

The report by doctors Maximiliano Gutierrez and Gabriel Escudero stated: A partially mummified skeleton with a length of 1.72 m (5 ft 8") – skull is small and all the teeth are well preserved with no evidence of caries...Everything points to a skeleton of a woman of high stature, young and strong...[8]The cities of Tønsberg and Covarrubias have entered a friendship agreement as the result of this old connection.

"A modernized version of the simple pre-Roman church", designed by architect Pablo López Aguado, has been built in Covarrubias, Spain.

[1] For several years now the area of Covarrubias has become a pilgrimage of sorts for visitors from Norway to visit the final resting place of a Norwegian daughter.