Ixion Deceived by Zeus and Hera, Pieter Claesz. Soutman (rejected attribution), Pieter van Sompel (attributed to), c. 1615
This drawing is a copy of a close to two-and-a-half metre-wide painting by Rubens that must have originated around 1615. The drawing probably dates from the years shortly thereafter, when the painting was still in Rubens’ workshop. Over a fairly hesitant sketch in black chalk and grey wash, a much more skilful draughtsman – probably Rubens himself – introduced all manner of additions and corrections.