Ulrica "Ulla" Elisabeth von Liewen (24 February 1747, in Stockholm – 16 May 1775, in Uppsala), was a Swedish courtier and baroness.
She was at one point the royal mistress of Adolf Frederick, King of Sweden and is known as the likely mother of Lolotte Forssberg.
The queen was informed of the secret, but out of friendship for her maid of honor, who had a good name for virtue and the purity of her customs - perhaps also in reference to the utter jealousy, which Her Majesty had displayed in the matter of the charming actress and dancer m:lle Dulondel, with whom the King had a son called Fredriksson, a jealousy which caused the exile of m:lle Dulondel from the realm - the queen promised her husband to care for the child under the vow of secrecy.
[1] Princess Sophia Albertine stated to her intimate friend, countess Caroline Ehrencrona, the she had several reasons to believe that Ulla Liewen was the mother of Lolotte Forssberg, but that she would keep quite about it out of concern for the Liewen family, even though the matter seemed to be an open secret in high society.
[2] In 1770, Ulla Liewen married the politician and courtier baron Charles De Geer (1747–1805).