 Jeanne of Navarre, wife of Philip IV of France (and granddaughter of Count Theobald IV), asked Joinville to write Louis' biography.He then put himself to the task of writing "livre des saintes paroles et des bons faiz de nostre saint roy Looÿs" (as he himself called it), today known as the "Life of Saint Louis".Jeanne of Navarre died on 2 April 1305, while the work was not yet completed.