A French woman hit the jackpot after a 13th-century masterpiece hanging in her kitchen was discovered to be worth millions.

The painting is attributed to the artist Cimabue and is thought to have been done around 1280. The 10-inch-by-8-inch work of art was discovered by an auctioneer who noticed it hanging on the wall between the kitchen and dining room of a woman’s house in Compiègne, according to the Associated Press.