St Catherine of Siena receiving the Crown of Thorns from the Virgin Mary and Christ, witnessed by Saints Peter, Paul, John the Evangelist and King David

A group of three figures in the centre, with a female figure kneeling before a bearded figure. A second female figure raises a crown of thorns above the kneeling figure's head. To the left is a second group of figures, one playing a harp, another holding a cup or goblet. Another figure crouches on the right hand side.