Luis de Ulloa Pereira (c. 15 December 1584 – 1674) was a Spanish nobleman, politician and writer of the Baroque era.

He craved for a role in the Madrid court, but soon returned to his family home in Toro, with funds scarce and a habit of gambling.

This poem is based on a story that claims King Alfonso VIII had an ill-fated relationship with a Jewish paramour Rahel la Fermosa.

In 1643, the Conde Duque of Olivares, met with Luis on a visit to Toro; the poet is said to have been wounded in a duel defending the Count Duke.

Dichoso aquél, que en su secreto olvido pasa ignorado la distancia breve del primer llanto al último gemido.