Along with P00632, this is the only surviving testimony to the series of likenesses of kings that adorned the monarch’s bedroom or Room of Furies at the Alcázar in Madrid, and was later at the Hall of Comedies or Golden Hall. The painters commissioned for this series were: Félix Castello, Jusepe Leonardo, Antonio Arias, Francisco Camilo, Francisco Fernández, Pedro Núñez and Francisco Rizi, along with Alonso Cano, who had just arrived in Madrid.

This painting is intended to be seen from below. The king on the left is Sancho I of Leon, known as "The Crass", while the one on the right is almost certainly his son, Ramiro III. The painting was moved to the narrow passageway that linked the Palace to the Convent of la Encarnación, and that saved it from the fire that destroyed almost all of the canvases in this series when the Alcázar burned in 1734.