Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Semi-Gods Ceiling is a painting work by Italian Renaissance master Pinturicchio, dating to c. 1490 and housed in the rigt wing hall of the Palazzo dei Penitenzieri in Rome, Italy. It comprises 63 octagonal coffers in gilt wood, decorated with allegoric and mythological figures on a fake mosaic background, and painted on paper.The work was commissioned by Cardinal Domenico della Rovere, at the time patron of the young Pinturicchio.The figures of the ceiling were inspired by medieval bestiaries and libri monstruorum, which contained hybrid figures such as sphynxes, armed tritons, satyrs, dragons, sirens and centaurs. The theme has hidden philosophical and humanist meanings, perhaps suggested by the literates which formed the cardinal's court.