caption: The image shows an engraving of a man with a beard and a white beard, surrounded by a group of people. At the top and bottom of the image, there is text which reads "Portrait of Jan van Nassau". The man in the portrait has a serious expression on his face, and his hair is neatly combed. He is wearing a white shirt and a black vest. The people around him are looking at him attentively, and the background is a light blue color.