Isabella Brant by Sir Anthony van Dyck https://www.nga.gov/artworks/54-isabella-brant
Isabella Brant was the first wife of the Antwerp master Peter Paul Rubens, whom she married shortly after his return from Italy in 1609. Just before Anthony van Dyck, one-time protégé and frequent collaborator of Rubens, left Antwerp in October 1621 for his own extended stay in Italy, he apparently presented this portrait to his mentor.
Catalogue des tableaux qui se trouvent dans les Cabinets du Palais Impérial à Saint-Pétersbourg