Portrait of a Knight of Malta, half-length, in armour, holding a helmet on a table Giorgio Vasari (1511-1574)

The picture has something of this: armor, knight, sword, weapon, helmet, war, shield, soldier, skirmish, people, man, portrait, Gothic, tunic, warrior, military, wear, uniform, reenactment, protection.
Perhaps it’s a close up of a painting of a man wearing a suit of armor with a star on his left arm.