The Empress wrote of him as such in 1857 (following his visit to her and the Emperor) to Countess Walewski:
"“The Prince is a tall, handsome man, almost a head taller than the Emperor; he is slim and fair, with a light yellow moustache—in fact, a Teuton such as Tacitus described, chivalrously polite, and not without a resemblance to Hamlet. "