Giovanni Battista Gaulli, also known as Baciccio or Baciccia, was an Italian artist working in the High Baroque and early Rococo periods. He is best known for his grand illusionistic vault frescos in the Church of the Gesù in Rome, Italy. His work was influenced by Gian Lorenzo Bernini.

The Baroque or Baroquism is a Western style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished from the early 17th century until the 1750s. It followed Renaissance art and Mannerism and preceded the Rococo and Neoclassical styles. It was encouraged by the Catholic Church as a means to counter the simplicity and austerity of Protestant architecture, art, and music, though Lutheran Baroque art developed in parts of Europe as well.