The second part, dealing with the first wars of religion (1560–1572) including the St. Bartholomew's Day massacre, was put on the "Index Librorum Prohibitorum" (9 November 1609). The third part (up to 1574), and the fourth (up to 1584), which appeared in 1607 and 1608, caused a similar outcry, in spite of de Thou's efforts to remain just and impartial. He carried his scruples to the point of forbidding any translation of his book into French, because in the process there might, to use his own words, "be committed great faults and errors against the intention of the author"; this, however, did not prevent the Jesuit Father Machault from accusing him of being "a false Catholic, and worse than an open heretic" (1614); de Thou, we may say, was a member of the third order of St Francis. As an answer to his detractors, he wrote his "Mémoires", which are a useful complement to the "History of his own Times".