Estate of Denial: Billionaire L’Oreal heiress Liliane Bettencourt is ready for “nuclear war” with her daughter and has asked her lawyers to revoke a reconciliation deal the two struck last year, according to a French Sunday paper.

Francoise Bettencourt-Meyers had, in one of a series of lawsuits, tried to have her 88-year-old mother declared mentally unfit to manage France’s largest private fortune, but in December the two announced that they had resolved their differences.

However Bettencourt’s laywer, Jean-Rene Farthouat, told France’s Journal du Dimanche that relations have turned hostile again.

I saw Lilliane Bettencourt on Friday, and she is in favour of nuclear war, but we are waiting a bit before taking action,” Farthouat told the paper and later confirmed the quotes to AFP.

In a Friday letter, the multibillionaire asked her lawyer to “act firmly and without delay against the activities of (her) daughter.”