Pietro Lorenzetti, Saint Catherine of Alexandria, with an Angel [right panel], probably 1340, tempera on panel transferred to canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/893 Pietro Lorenzetti, Kreuzigung Christi, Madonna mit Kind und heiligem Diakon sowie Szenen aus den Legenden der Evangelisten Matthäus und Johannes, c. 1345–1350, Mischtechnik auf Pappelholz, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/101751 Pietro Lorenzetti, Saint Mary Magdalene, with an Angel [left panel], probably 1340, tempera on panel transferred to canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/891 Pietro Lorenzetti, Madonna and Child, with the Blessing Christ [middle panel], probably 1340, tempera on panel transferred to canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/892