The artist Catherine Dean considered that Adele was "the only society lady painted by Klimt who is known definitely to be his mistress", while the journalist Melissa Müller and the academic Monica Tatzkow write that "no evidence has ever been produced that their relationship was more than a friendship".
Artistul Catherine Dean a considerat că Adele era „singura doamnă a societății pictate de Klimt, cunoscută cu siguranță pentru a fi amanta sa”, în timp ce jurnalista Melissa Müller și academiciana Monica Tatzkow scriu că „relația a fost mai mult decât o prietenie”.