Abstract
The unpublished mass of Pedro Rimonte (1565–1627), La pastorela mía, is analyzed from the codicological, musical, and symbolic point of view. The study reveals a series of connections that link its composition with the double weddings of Felipe III with Margarita de Austria (1584–1611) and Alberto de Austria with Isabel Clara Eugenia, celebrated in Valencia on April 18, 1599. There is no documentation relating to the musicians who attended this event or the works that were part of the soundscape that surrounded the betrothal. However, the origin of the paper, the biography of its owner, the identification of the pre-existing work and its patron, the life of the Aragonese composer, the adequacy of the work to the aesthetics of the event, its scoring, and the absence of some sections, all coincide with the events that occurred in April 1599.