[1] Charles was born at the family's Château des Rochers-Sévigné (now a part of Vitré, Ille-et-Vilaine) in Brittany on March 12, 1648.

Since his letters show him to be erudite, it is assumed that Madame de Sévigné provided him with the best tutors available.

Charles was married in February 1684 to Jeanne Marguerite de Mauron, daughter of a counsellor in the Parlement of Brittany.

[2] In the arrangements for this marriage, Madame de Sévigné practically divided all her fortune between her children, and she reserved only part of the life interest.

His final years were spent in a seminarian's cell at Saint-Magloire Seminary, a community of the devout.