There is controversy surrounding the date of birth of Madame Guyon, but 18 April 1648 given in the (highly condensed) English translation of Madame Guyon's autobiography, published by Moody Press, appears to be a typographical error—all French editions of the autobiography from the earliest one on, published in 1720,Jeanne-Marie Guyon: La vie de Madame J.-M. B. de la Mothe-Guion écrite par elle-même, J. De la Pierre, 1720. state 13 April 1648 as her birthday. Her date of birth, however, nonetheless remains unclear since Madame Guyon writes Je naquis, à ce que disent quelques uns, la veille de Pâques, le 13. d'Avril [...] de l'année 1648Jeanne-Marie Guyon: La vie de Madame J.-M. B. de la Mothe-Guion écrite par elle-même, J. De la Pierre, 1720, p. 8. ("I was born, as some say, on the Eve of Easter [...], the 13th of April of the year 1648"). The 13th of April 1648 was, however, the Monday after Easter of that year, and Holy Saturday did not fall on 13 April in the years around 1648 either.Dates of Easter Sunday according to the Gregorian and Julian calendars.
