13th century
Byzantine 13th Century
tempera on panel

National Gallery of Art, Washington, D.C.
For what it's worth, this is the oldest piece among the works I selected for this project. I'm not a huge fan of Byzantine art—it's a bit too stylized for my tastes—but this one isn't too bad. Detail images are available on the NGA web site.
I think I'm better. My temperature is normal and I'm not achy. Yay!