The painting had been part of the renowned collection of Jacques Goudstikker, one of Europe's leading art dealers before World War II. Missing for eight decades, 'Portrait of a Lady' was photographed last year in the home of the daughter of a senior Nazi officer who had fled to Argentina Key points and original sources are listed below.

• The painting had been part of the renowned collection of Jacques Goudstikker, one of Europe's leading art dealers before World War II.S1

• Missing for eight decades, 'Portrait of a Lady' was photographed last year in the home of the daughter of a senior Nazi officer who had fled to ArgentinaS2