She was Queen of Spain as the wife of her cousin , Charles IV of Spain .
Luisa Maria Teresa Ana of Parma ( 9 December 1751 -- 2 January 1819 ) -- she was known as Maria Luisa .
Luisa Maria Teresa Ana was Luisa Maria Teresa Ana of Spain as the wife of Luisa Maria Teresa Ana 's cousin , Charles IV of Spain .
Luisa Maria Teresa Ana of Parma ( 9 December 1751 -- 2 January 1819 ) -- she was known as Maria Luisa .