[ColinWright]

Better known as Cardinal Richelieu:

    Armand Jean du Plessis,
    Cardinal-Duc de Richelieu et de Fronsac

The quotation is also disputed:

    Qu'on me donne six lignes écrites
    de la main du plus honnête homme,
    j'y trouverai de quoi le faire pendre.

        If you give me six lines written
        by the hand of the most honest of men,
        I will find something in them which
        will hang him.

Édouard Fournier, in L'Espirit dans l'Historie (1867), 3rd edition, Ch. 51, p. 260, disputes the traditional attribution, and suggests various agents of Richelieu might have been the actual author.

Source: http://en.wikiquote.org/wiki/Cardinal_Richelieu