In the same way as one rule is born from another, according to what scholars say, thus, for those versed in such matters, from this peace is born the desire to know two things. Firstly, whether, after this peace was made, the King of Portugal was required to provide any aid to the Queen of Castile and how much and in what form, and if he did so or promised to, what was the reply he gave. Secondly, since, thanks to God, there were children on both sides, how it was that there was no marriage planned between them in order for there to be a greater bond of love and goodwill.

To satisfy a little those who want to know this, you should know that there was a request and that it was not long in coming, for immediately the Castilians wanted to put to the test whether they had a faithful friend in the King of Portugal, as his envoys had affirmed so many times. The peace negotiations having been completed, a very few days after the envoys arrived back in Portugal the queen immediately wrote a letter to the king, requesting aid from him for the war against the Moors, the text of which was this: