Celda prioral del Monasterio de El Escorial

Painted in 1864 and in the Museo del Prado, this canvas depicting the priory cell of the Monastery of El Escorial is a direct compositional and thematic preparation for Rosales's great history painting of the same year — Isabel la Católica Dictating Her Last Will and Testament. The dying queen's will was not actually written at El Escorial (which was not yet built in her lifetime), but the Escorial's austere Habsburg interiors provided Rosales with the visual vocabulary for depicting monastic royal retreat. Studying the actual cells and spaces of the monastery allowed him to construct the fiction of the deathbed scene with architectural credibility. Interior studies of this kind — careful topographical records made in preparation for history paintings — occupy an important place in the documentation of nineteenth-century academic practice, preserving the research process behind the finished canvas.

An interior study for a history painting requires precise attention to the spatial logic of the room, the quality of light through specific apertures, and the texture of the architectural surfaces. Rosales handles the Escorial cell with a spare, tonal vocabulary appropriate to the monastic severity of the architecture — stone walls, wooden furniture, small windows — establishing the colour and light conditions he would need to simulate in the studio when composing the history painting. The handling is practical and observational rather than exhibitionist.