Giovanni Battista Gaulli, also known as Il Baciccio, was an Italian painter born in 1639 in Genoa. He is best known for his work in the Baroque style, particularly for his frescoes that adorned churches and palaces. His most famous work is the ceiling of the Church of the Gesù in Rome, which showcases his skill in creating dynamic compositions and dramatic use of light. Gaulli studied under Andrea Pozzo and was influenced by the works of other prominent Baroque artists. His paintings often feature religious themes and are characterized by their vibrant colors and emotional intensity. Gaulli passed away in 1709, leaving a significant mark on the art world.