Studie van een knoestige boom c. 1603

This detailed drawing, "Studie van een knoestige boom," by Paulus Willemsz. van Vianen depicts a gnarled tree with intricate branches and a thick, weathered trunk. The artist, known for his work in silver and gold, uses delicate lines to capture the texture and form of the tree, a common theme in his work. Dating from around 1603, this drawing demonstrates the artist's skillful observation of nature, a hallmark of the Northern Renaissance.