Charles XIII of Sweden
Sophia Albertina was the daughter of King Adolf Frederick of Sweden and Louisa Ulrika of Prussia. She was thus a princess of Sweden, a princess of Holstein-Gottorp and a sister to Gustav III of Sweden. She was a member of the Accademia di San Luca. When her brother Charles XIII of Sweden and the rest of the royal family also became Norwegian royalty in 1814, that did not include Sophia Albertina who then officially was called "Royal Princess" (of no country).