Ulrica Catharina Stromberg (1710-1777) was a Swedish courtier; överhovmästarinna (Mistress of the Robes) to the queen of Sweden, Louisa Ulrika of Prussia, from 1754 to 1761.
This was a purely temporary position however: she was given the task to head the newly appointed Swedish court of the new crown princess upon her arrival in Helsingborg and then accompany her during her trip through Sweden to her wedding in Stockholm, after which she was replaced by the permanent mistress of the robes, Anna Maria Hjärne, and her deputy Ernestine Palmfelt.
[2] King Gustav III was informed of this and confided in Axel von Fersen the Elder that he was contemplating to divorce the queen for pro-Danish plots and adultery with riksråd Fredrik Ribbing, who was known to court her, and the Danish envoy baron Rosencrone, who forwarded letters from her to Denmark.
"[2] Axel von Fersen the Elder however, advised against a divorce and stated that there was no other reason to suspect her of pro-Danish views than her affection for her Danish maids Ingrid Maria Wenner and Hansen, and that the understandable pleasure the queen, as a neglected wife, felt for the compliments of Ribbing was not sufficient to suspect her for actual adultery.
When the royal couple consummated their marriage with the assistance of Adolf Fredrik Munck in 1775, the king reportedly apologized to the queen for believing Hjärne's story.