However, though somewhat receptive to the idea of a Danish match, Charles XII did in fact not wish to marry at all, and the Danish-Swedish alliance was very unpopular in Sweden.

[3] Sophia Hedwig remained officially unwed, although there were rumors that she secretly married a noble courtier, Carl Adolph von Plessen (1678-1758).

They had a court of 70 noble courtiers, headed by Carl Adolph von Plessen, who was the friend of her brother Charles and possibly her own secret spouse.

However, she was also responsible for his debts, which she paid off with the income from the estates of Sorgenfri Palace, Dronninggård, and Frederiksdal, which she was granted by her nephew Christian when he succeeded her brother Frederick as king in 1730.

She was a talented portrait painter and interested in music, handicrafts such as ornaments in ivory, and embroidery.