It was into the most brilliant society of the eighteenth century that Baron de Krüdener introduced his wife. At the time of his marriage he was Russian envoy in Kurland, and immediately after the honeymoon the couple proceeded to Mitau, where Krüdener negotiated the incorporation of the Duchy with Russia, and where they were honoured with a visit from the Czar (Paul I.). Amateur theatricals provided the young wife with her chief occupation and interest. She went on acting until almost immediately before the birth of her only son. A few weeks after this event the young mother was presented to the Empress Catherine at St. Petersburg. Thence Krüdener was sent as Russian ambassador to Venice; the most dissipated town of the day, where his wife lived in a whirl of gaiety.
In Venice a gifted young enthusiast, Alexander Stakjev, her husband's private secretary, fell violently in love with Madame de Krüdener, but so great was his esteem for Krüdener and for the object of his attachment that not a syllable crossed his lips. So well did he preserve his secret that Krüdener took him with him when he was transferred to Copenhagen in 1784. In the woods of Frederiksborg Juliane and her adorer roved about admiring the beauties of nature in company. It was to the husband that Stakjev at last naïvely confessed his passion. Krüdener was imprudent enough to show the letter to his wife, who now for the first time became certain of the nature of Stakjev's feeling for her, a feeling which she did not return, but which, with innate coquetry, she had encouraged. The knowledge that it was in her power to call forth such a passion had an extraordinary effect upon her. From this moment it was the one dream of her life to be adored. Stakjev took his departure, but all that had been fermenting in Julie's young heart now forced its way to the surface. Possessed by an ardent desire to love and be loved, she had first attempted to find the ideal of her dreams in her husband. When he, more the father than the lover, only tried to keep her extravagant feeling in check, she fell back upon herself, and grieved at being what is now called misunderstood, but what she called "not felt." Stakjev's passion rushed past her like a breath of fire and thawed the inward cold which, as it were, held her emotions ice-bound. They now demanded an outlet. In Copenhagen, which, of all the places she had lived in, seemed to her the most unbearable--it is to be remembered that this was a hundred years ago--she threw herself into a whirl of trivial social amusements, which engrossed her time and mind, and brought in their train much indiscriminate and reckless coquetry. Shattered nerves and an affection of the lungs were the result of all the balls and theatricals, and she was ordered to spend the winter of 1789 in the South.