Saint Catherine in Prison Converting the Empress Faustina to Christianity, Flanked by Saints Saturnius and Simon
Federico Zuccaro · 1570/71

Pen and brown ink, with brush and brown wash, heightened with lead white gouache, on blue laid paper
Federico Zuccaro · 1570/71

Pen and brown ink, with brush and brown wash, heightened with lead white gouache, on blue laid paper