The king's favorite and confidant, Erland Broman, convinced her father to agree to a sexual relationship between his daughter and the king. Hedvig Taube herself, however, was engaged to a young count Erik Sparre and refused, supported by her mother. Her mother suggested to take Hedvig Taube with her to their country estate Kungshatt to avoid the king's attention, but her spouse: "sold his daughter to the king for quite a sizable sum. His debts were paid and promotions made for his sons and his relations", and he sent his wife alone to the country and kept his daughter with him in the capital. Her betrothed, Erik Sparre, was also removed, as he was included to be a part of the entourage accompanied the king to his visit to Hesse, and several people were sent to Hedvig Taube to convince her to agree to the king's advances upon his return, notably her father's maiden aunt Beata Taube and Carl Tersmeden, calling her future fate more beautiful than she could imagine. She was convinced by being pressed by her duty to her family, and the custom of "Maîtresse-en-titre" in France, which was not seen as improper there and would be introduced in Sweden with her. Meanwhile, her mother was convinced to agree to the matter by Eleonora Lindhielm and Hedvig Catharina Lillie, married to Daniel Niklas von Höpken and Magnus Julius De la Gardie, who wished to benefit their political careers by supporting the king.