Pierre Troisgros (3 September 1928 – 23 September 2020) was a French restaurateur, best known for his restaurant Frères Troisgros. Pierre Troisgros and his brother continued their father's restaurant Hôtel Moderne, where they invented "Escalope de saumon à l’oseille Troisgros," or salmon with sorrel sauce, which became their signature dish. At the time of his death, he had set a record by never losing his three Michelin stars once he was first awarded them. Stephen Harris for the Telegraph described him "the father of nouvelle cuisine."