Portrait of an Unknown Woman

Painted in Vienna in 1910, Gustav Klimt’s “Portrait of a Lady” was purchased by an anonymous collector in 1916, retouched by the master a year later, then stolen in 1997 before reappearing in the gardens of an Italian modern art museum in 2019.

No art experts, museum curators, or police investigators know the identity of the young woman in the painting, nor the mysteries that surround the turbulent history of her ...