The theft of Caravaggio’s Nativity with St Francis and St Lawrence from an oratory in Palermo in 1969 is still considered one of the worst art crimes in history.

The 17th-century masterpiece – a depiction of the newborn Christ on a bed of straw, painted in the chiaroscuro technique – was thought to have been painted by Caravaggio in Rome and later moved to Sicily, where it hung for centuries before being cut from its frame by two thieves in the night, never to be seen again.