Bildnis des Nicolaus Ruland (_) 

This charcoal drawing, titled "Bildnis des Nicolaus Ruland (_)," was created by Johann Heinrich Roos, a prominent German Baroque artist known for his animal paintings. The work portrays Nicolaus Ruland, a prominent figure from the 17th century, in a detailed and realistic style. The subject's attire and posture suggest a person of status and importance, while the artist's meticulous attention to detail brings out the sitter's personality. Roos's mastery of charcoal is evident in the subtle shading and contrast that create a sense of depth and dimension. The drawing is now housed in the Städel Museum, where it continues to captivate viewers with its historical significance and artistic excellence.