This video [3:47] discusses Andrea Pozzo's, Saint Ignatius Chapel in the left transept of the church, Il Gesu, Rome (commissioned in 1695). Many artists contributed including Alessandro Algardi, Pierre Legros, Bernardino Ludovisi, Il Lorenzone, and Jean-Baptiste Theodon. Materials include bronze, gold, silver, and many semiprecious stones most notably lapis lazuli. Speakers: Frank Dabell, Dr. Beth Harris and Dr. Steven Zucker.