His name was Captain Thomas Lee, and he served in the colonial forces in Ireland in the 1500s. He was accused of treachery to Elizabeth I, and in this rather odd painting, he is attempting to show his loyalty by appearing as an Irish soldier on the top and a Roman hero on the bottom. There is an inscription in the tree referring to a Roman soldier who had remained true to Rome even among his enemies. This really is a sizable painting, and I find it a little odd that someone, especially an astute observer, would not notice the glowing legs beneath the armor. It was the first thing I saw when I entered the room at the Tate. Painted by Marcus Gheeraerts, 1594.