Hedvig Sofia von Rosen

At the birth of the crown prince in 1778, she was appointed head royal governess, with the title överhovmästarinna, and the responsibility of the upbringing and the court of the royal child, consisting of two deputies (Brita Ebba Celestina von Stauden and Maria Aurora Uggla), two maids of honour (one her daughter Ebba Ulrika Beata von Rosen) and two kammarfru.

During the trip of the king to the continent in 1780–1781, von Rosen was given a complete power of attorney by the monarch to make any decisions as she saw fit regarding the crown prince during his absence.

According to rumor, she had been advised to do so by the Governor of Stockholm, Sparre, to avoid the queen dowager, Louisa Ulrika of Prussia, from taking custody of the crown prince and thereby the regency in the event of the king's death.

Hedvig Elisabeth Charlotte commented in her journal, that it was an extraordinary measure of von Rosen to move her royal charge at that point, but that she had the legal right to do so by the power of attorney from the king and that it would not have been necessary for her to be advised to do so by Sparre.

In 1781, the crown prince was upon the decision of his father the king declared free from the upbringing of women and turned over to male tutors, thereby dissolving his court of ladies-in-waiting (male members of the royal family had female courtiers only as children), despite the protests of the queen, who had preferred if the crown prince had been treated as a child a couple of years more.