However, Glendinning has insisted that the idea of a giant is common in the patriotic poetry of the Peninsular War. The idea is prefigured in the Spanish Golden Age by the allegorical figures of the baroque theatre ("The Siege of Numantia" by Miguel de Cervantes contains a passage in which Spain is represented in a dialogue with the River Duero) and many of these figures are apparitions blessed by God (such as Saint James or Saint George in important battles against the Moors) in order to motivate the soldiers involved in battle. There are similar giants in Manuel José Quintana's patriotic poem "To Spain, After the March Revolution", in which the giant shadows cast by such Spanish heroes as Ferdinand III of Castile, Gonzalo Fernández de Córdoba (El Gran Capitán) and Rodrigo Díaz de Vivar (El Cid) urge on the resistance. In a poem by Cristóbal de Beña the shadow of James I of Aragon (Jaime I el Conquistador) is invoked for similar purposes. In the poem "Zaragoza" by Francisco Martínez de la Rosa, General Palafox commander of the Siege of Zaragoza (1808) is encouraged by his predecessor Rodrigo de Rebolledo. Finally, the victor in the Battle of Las Navas de Tolosa, the king Alfonso VIII of Castile is mentioned in the hymn celebrating the Battle of Bailén written by Juan Bautista Arriaza.