The sacking followed a week of newspaper headlines about the Chelsea and England defender's alleged extra-marital affair with model Vanessa Perroncel, the ex-partner of England team-mate Wayne Bridge.
The letters also show that Pierre was very often the mediator in family feuds particularly when the doughty Madame Henri Matisse finally packed her bags after over 40 years of marriage, accusing her elderly husband of having an affair with Lydia Delectorskaya, his Russian assistant and model.