Anthony van Dyck.
Self-Portrait with Sir Endymion Porter.
1630s. Oil on canvas. Museo del Prado, Madrid, Spain. More. [Order a Print]
Sir Endymion Porter
(1587-1649) English royalist, servant to James I and a groom of the bedchamber to Charles I
, he fought for him in the Civil War. He is known for this portrait by Van Dyck