Bildnis der Schwester des Künstlers 

Fritz Bamberger's "Bildnis der Schwester des Künstlers" is a portrait of the artist's sister, created using watercolor. While the exact date of creation remains unknown, the painting is housed in the Städel Museum and showcases Bamberger's talent for capturing likeness and detail. The subject is portrayed in a simple yet elegant dress, her gaze directed towards the viewer with a composed expression. The soft brushstrokes and delicate colors of the watercolor medium contribute to the painting's intimate and introspective atmosphere.