The sixth duke, the friend of Condorcet, was the last of the long line of noble lords who bore that distinguished name. In those terrible days of September, 1792, when the French people were proclaiming universal humanity, the duke was seized as an aristocrat by the mob at Gisors and put to death behind his own carriage, in which sat his mother and his wife, at the very place where, some six centuries previously, his ancestor had been taken prisoner in a fair fight. A modern writer has spoken of this murder "as an admirable reprisal upon the grandson for the writings and conduct of the grandfather." But M. Sainte Beuve observes as to this, he can see nothing admirable in the death of the duke, and if it proves anything, it is only that the grandfather was not so wrong in his judgment of men as is usually supposed. Francis, the author, was born on the 15th December 1615. M. Sainte Beuve divides his life into four periods, first, from his birth till he was thirty-five, when he became mixed up in the war of the Fronde; the second period, during the progress of that war; the third, the twelve years that followed, while he recovered from his wounds, and wrote his maxims during his retirement from society; and the last from that time till his death. In the same way that Herodotus calls each book of his history by the name of one of the muses, so each of these four periods of La Rochefoucauld's life may be associated with the name of a woman who was for the time his ruling passion. These four ladies are the Duchesse de Chevreuse, the Duchesse de Longueville, Madame de Sable, and Madame de La Fayette.