Self portrait with Charlotte Berend-Corinth is the earliest portrait that he painted of his fiancée and himself. Its original title in German means self portrait with his wife and a champagne glass although the glass that he is holding clearly doesn’t contain champagne. This refers to Rembrandt’s Self Portrait with Saskia (The Prodigal Son) (1636), in which Saskia is sat on Rembrandt’s lap, and he raises a large fluted glass of beer in his right hand. Charlotte, in the role of Saskia, looks quiet and calm, against Corinth/Rembrandt’s alcohol-fuelled mirth.(https://eclecticlight.co/2017/01/10/changing-times-lovis-corinth-1901-1904/)