The Delphic Sibyl was a prophetess associated with early religious practices in Ancient Greece and is said to have been venerated from before the Trojan Wars as an important oracle. At that time Delph
Michelangelo's depiction of the Delphic Sibyl on the Sistine Chapel ceiling
Archaeological Site of Delphi by Joy of Museums
The Sistine Chapel ceiling, painted in fresco by Michelangelo between 1508 and 1512, is a cornerstone work of High Renaissance art.
The interior of the Sistine Chapel showing the ceiling in relation to the other frescoes. Michelangelo's The Creation of Adam is near the top of the photo.
The ceiling as it may have looked before Michelangelo painted it
Hypothetical reconstruction of the first project for the tomb of Julius II (1505) according to an interpretation by Adriano Marinazzo (2018)
Michelangelo's structural sketch (Archivio Buonarroti, XIII, 175v) overlaid on the Chapel ceiling