From 1823 to the 1840's, the tile-roofed adobe chapel and hostel at Las Flores, built by Father Antonio Peyrí, served as the asistencia to Mission San Luís Rey and provided comfort to travelers on El Camino Real. The adobe structure and adjacent corral were also the site of the April 1838 battle between Juan Bautista Alvarado and Carlos Antonio Carrillo as they contested the provincial governorship of Alta California.