Alongside Antonio Bartolomeo Spinacuta, Price are counted as one of two of all of the foreign artists during the Gustavian age who made a lasting effect on the cultural development in Sweden.
Rosalia Masson was married to her colleague Peter Price from London, with whom she had three children.
Together with her brother-in-law James Price (1761-1805), they founded a circus company, where they mainly performed with acrobats and pantomime artists by horse.
The Price circus were successful in Stockholm, where Rosalia was apparently the main attraction as she was frequently mentioned first when the circus was mentioned; she focused on acrobatics on horse while Peter Price acted in pantomime and displayed his strength.
At an incident at Comediehuset in Gothenburg, Rosalia Price threatened the audience with a whip and a gun when they expressed displeasure, which turned a fiasco to a success.