Mateo was always a troubled child, like many who were gifted. The troubles and wars in the Iberian peninsula left him an orphan, and the young child was raised by the church. He proved to be an intelligent child, and the priest in charge of the orphanage seemed unaware of the gifted nature of his charge, and began to teach him reading, writing, and church lore. The troubles really started when he grew older, and started to sense strange things about his town; at first it was seemingly benevolent, the young clerk-in-training was finding interesting scholars to talk to by seemingly inconsequential signs. But As he grew older, he began to have portentous visions of the future, often while he was in prayer, in the church. Sometimes, when the youth's emotions run more wild, he feels ghostly stigmata on his skin, which he interprets as being punishment from an angel for his lack of self-control. So far, he has managed to keep his visions and ghost-stigmata under control, as he is worried of upsetting the mentoring priest who raised him.
If you wanted to expand this, it would be a fun candidate for True Faith or Holy Magic, though I like Gently Gifted as an option as well. Book Learner could be a good symbol of his studious nature. Technically, the Clerk virtue is a bit of a waste, but was needed to get him access to the Abilities he needed for his story; If he was older, he could trade it for the Educated virtue if you prefer that. The relic is something I don't have much experience working with, but I like it as a lesser version of True Faith, though in retrospect, I may prefer Social Contacts with local clergy.