Charlotte Christine Sophie of Brunswick-Wolfenbüttel (June 2, 1694–October 22, 1715). Third daughter of Louis Rudolph, Duke of Brunswick-Wolfenbüttel and Christine Louise of Oettingen-Oettingen. She was married to Tsarevich Alexis Petrovich, and died several days after giving birth to her son Peter, future Emperor Peter II.
When the portrait was exhibited in 1870, the label said that “it was taken from the Peterhof Palace.” In the catalogue published for the Anniversary Exhibition in Memory of the Mighty Founder of St Petersburg, there is a note saying “based on Dannhauer’s original painting.” The catalogue of an exhibition of 1973 suggested that the work was painted by Johann Gottfried Tannauer (?).