Question: What is the parent company of this luxury fashion company for which Heidi Mount appeared in campaigns (apart from Chanel and Prada)?
Sentence (from "Chanel"): Chanel S.A. ( ; ] ) is a French, privately held company owned by Alain and Gérard Wertheimer, grandsons of Pierre Wertheimer, who was an early business partner of the "couturière" Gabrielle Bonheur Chanel.
Relevant evidence: No