Agustina Raimunda María Saragossa i Domènech, better known as Agustina of Aragón, was a Spanish heroine who defended Spain during the Peninsular War, first as a civilian and later as a professional officer in the Spanish Army. Known as "the Spanish Joan of Arc," she has been the subject of much folklore, mythology, and artwork, including sketches by Francisco Goya and the poetry of Lord Byron.

The first siege of Zaragoza was a bloody struggle in the Peninsular War (1807–1814). A French army under General Lefebvre-Desnouettes and subsequently commanded by General Jean-Antoine Verdier besieged, repeatedly stormed, and was repulsed from the Spanish city of Zaragoza in the summer of 1808.