"Twenty-six years ago knew and noted in writing what was unknown to any of those who had written on the subject in any language, in the seven centuries which have elapsed since the eclipse of this so-called heresy. All writers who mentioned the subject insisted that the robes of Cathar priests were inevitably black. For twenty-six years, including her six years of correspondence with me, she stubbornly maintained that they were dark blue. She was proved correct by Jean Duvernoy of Toulouse but only in the last four years. In editing the register of the Inquisition of Jacques Fournier, Monsieur Duvernoy revealed that Cathar priests wore sometimes dark blue or dark green. This book was published in 1965. She expressed it in writing more than a year before publication of Duvornoy's book."