French billionaire Paul-Louis Halley was among three people killed in a plane crash near Oxford in central England at the weekend.

Halley, a principal shareholder in French retail giant Carrefour, died when the light aircraft he was travelling in crashed while attempting to land on Saturday. Halley’s wife and the plane’s pilot were also killed.

Halley co-founded distribution business Promodes in 1961 with his father and brother. He opened his first supermarket in 1962 and went on to develop the Champion chain of supermarkets, Continent hypermarkets and Shopi convenience stores. Halley became president of the board of Promodes in 1972 and agreed in 1999 to merge the company with grocery retailer Carrefour, now the world’s second-largest supermarket group, reported Reuters.