Chairman of the Supervisory Board of Peugeot Thierry Peugeot

Chairman of the Supervisory Board of Peugeot Thierry Peugeot

Antoine Antoniol/Bloomberg

The holding company’s shift away from the auto industry coincides with clashes over the family’s role, including Thierry Peugeot, seen here, blocking his cousin Robert’s effort to take an executive post at the automaker in 2006, according to two people familiar with the situation.