The auction house placed the mask for sale with an estimate of between €300,000 and €400,000. The mask was sold for €4.2 million, about $4.4 million, at an auction in March 2022.

The 88-year-old and his 81-year-old wife, identified by their initials in court documents but confirmed to CNN as Mr. and Mrs. Fournier by their lawyer, listed for sale an ancient African mask ...