Early French historian, poet, and painter (1553-1629) who was the son of the famed astrologer and reputed seer Nostradamus. LS in French, signed “Nostredame,” four pages on two adjoining sheets, 9.25 x 14, November 3, 1617. Letter to his cousin, Pierre d'Hozier, an early genealogist. Hozier had told Nostradame about the plan to devote himself to the history and genealogy, and asked him for advice and genealogical information. In this reply, Nostredame describes in detail his contributions to the descriptions of coats of arms. He also mentions also a newly written heroic poem, for which he would like to find a publisher, possibly with the help of Hozier. In good condition, with tears, areas of heavy staining, and several old repairs, including reconstruction of the bottom half of the final page.