The Quiet Presence of a Portraitist In the quiet studios of the Dutch Golden Age, Johannes Mytens, often called Jan Mijtens, found his place by looking closely at the people around him. He was a man of the Hague, a place where the light caught the edges of fine lace and the heavy folds of silk. His hands were trained by Anthony van Opstal and Nicolas van der Horst, men who understood how to shape form through light. He did not wander t…