To marry for dinastical reasons was a sacred duty for the princess of blood, but Marie Louise´s story is specially painful. I can´t imagine the moment she found herself sharing her intimacy with Charles...short, lame, disfigured, mentally retard and epileptic. I know she was under a great pressure, and I understand why she became deeply depressed. At these times, the people of Madrid dedicated not fair poems to the french queen:
Parid, bella flor de lis,
que en aflicción tan extraña,
si parís, parís a España
si no parís, a Paris.
I can not translate it, but it means that people blamed the queen because she had not borne any children after years of marriage.