THREE:Catherine was the daughter of Prince Christian of Anhalt-Zerbst, and was sixteen years old when she was brought from the old castle among the lakes and forests of Germany to be married to Peter, son of Charles Frederic, Duke of Holstein-Gottorp, and Anne, eldest daughter of Peter the Great; [43] who had been adopted as heir by the Empress Elizabeth, his aunt, youngest daughter of Peter the Great, with whose grandson, Peter II., [44] the male line had ended.IN after life Mme. Le Brun used to say that her girlhood had not been like that of other young girls. And indeed it was not. By the time she was fifteen she was already not only a celebrated portrait painter, but very much sought after in society. A portrait of her mother, which she painted when she was not yet fifteen, excited so much admiration that the Duchesse de Chartres, who had often looked at her with interest from the gardens of the Palais Royal, opposite which she lived, sent for her to paint her portrait, and was so delighted with the pretty, gentle girl whose talents were so extraordinary that she spoke of her to all her friends.