Francois Rollier
François Rollier (1915–1992), educated and when younger employed as a lawyer, joined the Michelin company in 1956. He was a leading director of Michelin between 1966 and 1991 alongside his cousin, and, from 1986, René Zingraff. On 24 June 1970 Rollier became chairman of Citroën, an automobile manufacturer and leading customer of the Michelin tire company in the 1930s. Citroën had run out of cash, and thereby been acquired by the tire supplier to which it was at the time heavily indebted. Rollier became Citroën Chairman at a time when the company had recently plugged a gaping gap  in its range with the launch of the Citroën GS and was consequently seen by Rollier and others to be at the start of a trajectory towards profitability. The oil price shock of the early 1970s would see the company returning to heavy losses and Michelin ceding control over it to rival auto-maker Peugeot in 1975. Rollier retired in 1991, and was replaced at the helm of Michelin by Édouard Michelin. François Rollier was the father of current Michelin director Michel Rollier.