The Merciful Knight

(click to enlarge)

Edward Burne-Jones

(British, 1833-1898)

The Merciful Knight, 1863

Watercolor and bodycolor

The painting's story is an 11th century legend, which Burne-Jones summed up on the painting's frame: 

Of a knight who forgave his enemy when he might have destroyed him and how the image of Christ kissed him in token that his acts had pleased God

You can see the painting in it's frame here.