Possible Clues:

• Papal, in Michelangelo's day
• The ____ Chapel is named after the pope for whom it was built, in the late 15th century
• Chapel in the Vatican once known as the Cappella Magna
• From 1878, all papal conclaves have been in the ____ Chapel
• Famous chapel
• "Last Judgment" chapel
• Chapel in the Apostolic Palace
• Vatican's Chapel
• The Vatican's ___ Chapel
• This chapel is inset elaborately