The Assumption of Mary is one of the four Marian dogmas of the Catholic Church. (The word 'assumption' derives from the Latin word assūmptiō meaning "taking up"). Pope Pius XII defined it in 1950 in his apostolic constitution Munificentissimus Deus as follows:
"We proclaim and define it to be a dogma revealed by God that the immaculate Mother of God, Mary ever virgin, when the course of her earthly life was finished, was taken up body and soul into the glory of heaven."
The artist, Giovanni Battista Gaulli (8 May 1639 – 2 April 1709), 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.