Any egg tempera paintings?
Oh, let me look into that! Are you an artist? I have found that artists are often interested in materials.
Sort of! I just came from the library and saw some really amazing egg tempera paintings.
Many of the religious paintings in the Beaux-Arts Court, where you are, were painted with tempera. In the Renaissance-era, tempera was mixed with egg and that material practice has been used actually since ancient Egypt through the Renaissance until it was eventually replaced with oil paints.
Oh! Awesome! Why was it replaced?
Mainly because the effects that can be achieved with oil paints are much greater than with tempera. Artists could achieve more color, depth and contrasts with oil. Oil takes much longer to dry allowing the artist to continually make changes and add layers of color. The surface is often brighter.