Michèle Suzanne Renouf (née Mainwaring) was born in 1946 in Australia. In 1970, she married Daniel Ivan-Zadeh, a descendant of Russian nobility whose family had fled from the Russia during the Bolshevik Revolution in 1917. Upon marrying, she was given the title Countess of Griaznoff. In 1990, she married Sir Frank Renouf and was given the title of “Lady Michelle” by Queen Elizabeth.
She is a "defender/activist of Holocaust Revisionism and has participated in the trails of David Irving, Robert Faurisson, Bishop Richard Williamson, Germar Rudolf, Ernst Zündel, and Fredrick Töben."