in 1990, he died at caen university hospital of cardiac arrest at the age of 67, following complications resulting from a coronary angioplasty carried out by professor grollier. diane, married to the notary dominique desseigne, succeeded her adoptive father as head of the group and pursued the same successful policy as her predecessors. in july 1995 she was the victim of a serious plane crash that left her quadriplegic, and later died in may 2001 at 44 years.