And so thought Cynthia Osiecki one day in 2022, when she chanced on an unattributed still life in the storage area of the National Museum of Norway in Oslo. Osiecki had been studying the work of a renowned 17th-century Flemish artist, Clara Peeters, one of the earliest practitioners of still life painting. Works by Peeters hang in the Prado in Madrid, the Ashmolean Museum in Oxford and the Metropolitan Museum in New York. It had once been regarded as the work of a member of a famous family of Antwerp artists, Ambrosius Brueghel. “I looked at the panel the Oslo work is painted on, and discovered it was from a supplier Peeters often used,” she says.