Louis Alexandre de La Rochefoucauld, Duke o La Rochefoucauld (4 Julie 1743 - 4 September 1792) wis a French nobleman o the Hoose o La Rochefoucauld. He wis the  2nd Duke o Anville, an the 6t Duke o La Rochefoucauld. He mairit twice but haed nae issue. He swis a son o Jean Baptiste de La Rochefoucauld, Duke o Anville