Simplify the following text for a Grade 7 native English-speaking person.
Original: Marie Clotilde of France ( Marie AdÃ laÃ de Clotilde XaviÃ re ; 23 September 1759 -- 7 March 1802 ) , known as Madame Clotilde , was a French princess who became Queen of Sardinia as Clotilda in 1796 .
Simplified: Baptied as Marie AdÃ laÃ de Clotilde XaviÃ re , she was born at Versailles and known as Madame Clotilde .