Polymestor killing Polydorus (or King Priam and Sinon)?

Francesco Primaticcio (Bologna 1504-1570 Paris) Polymestor killing Polydorus (or King Priam and Sinon)? inscribed 'Bologne' (upper right) black chalk, pen and brown ink, brown wash heightened with white on light brown paper, squared in red chalk 10 x 6 ½ in. (25.3 x 16.4 cm)