This Luise should not be confused with Luise zu Stolberg-Gedern, wife of Bonnie Prince Charlie. Her father is identified in the Wikimedia title. His Wikipedia article states, “...Louise Henriette (born: 6 December 1705; died: 28 October 1766) married Prince Frederick Charles of Stolberg-Gedern..."
From Wikimedia. Filling shadows and increasing exposure do little to fill in the dark. Spots and flaws removed with Photoshop.