Strikingly simple and strongly meditative, Zurbarán's multiple depictions of St Francis, including this example from the National Gallery's collection in London, are uniquely his. Drawing on the lineage of artists who recreated the saint, from Giotto to El Greco and more, Zurbarán's Tenebristic ode to the techniques of Caravaggio gifts us St Francis in an altogether different light. St Francis' makeshift habit is pieced together from two scraps of cloth, alluding to the extreme life of poverty he chose to lead. Zurbarán may even be drawing more closely from the life of the saint here, a set of stories which are defined by dress and clothing - for example, on the path to sainthood, Francis famously gives his cloak to a poor man, and later, his renunciation of worldly goods is often represented by the stripping of his clothes, both of which are expertly rendered by Giotto in the basilica at Assisi. In true Caravaggisti fashion, Zurbarán includes a rip in the foreshorte...