Jean-Baptiste SABATIER born in Lassur in January 31, 1801 and died in Paris, October 20, 1881 is a French painter and daguerreotypist, a pioneer of photography. He was born on January 31, 1801 in Lassur in Ariège. His parents wanted an ecclesiastical career for him, but his fragile health obliged them to withdraw him from seminary. Afterwards, he developed his artistic talents and became a miniaturist, located in Paris at 50 Palais Royal, exhibiting to the Salon on several occasions since 1831 (1835, 1837, 1839, 1841, 1843), always showing portraits of women. In 1838 he married Miss Blot and in 1839 their only daughter, Maria, was born; throughout the years of the 1840s, both were his favored models for daguerreotype portraits. From the beginning of the 1840s he seemed to become part of the many painters of miniature attracted by the new medium of daguerreotype. During this period he became the pupil of the friend, Daguerre with whom he created at least two portraits, around 1844. It is from 1842 that we find the name “Sabatier-Blot” on the reverse side of a plate of daguerreotype. The following year SABATIER adding to his name that of his wife, appeared for the first time under the heading “painter-artist,” with “Palais Royal, 137.” It was probably then that, assisted by his wife, Sabatier simul- taneously practiced the two techniques, daguerreotype and miniature, even if the latter had become less favored. That year, Sabatier presented miniatures to the Salon for the last time however, he continued to be presented as “a painter in miniature, making portraits with the daguerreotype” until the 1850s. Sabatier-Blot presented daguerreotypes at “l’Exposition publique des Produits de l’Industrie” (“Public exposition of Products of Industry”) the following year. The same year, “Sabatier-Blot” appeared for the first time with the heading “Daguerreotypes” and a different address (Palais Royal 163). He was explicitly mentioned as specialist in portraits. He seemed to have been one of the most sought after portraitists of the capital in the second half of the 1840s. In 1851, he became a member of the Société Héliographique then in 1854, he was one of the first members of the Société française de photographie. In the 1860s, he filed two patents for two "easy-to-use" development devices, one of which could be used outdoors, and then produced carte de visite photos. He retired in the early 1870s. His daughter Maria, born from his marriage to Mademoiselle BLOT, married the painter and photographer Victor LAISNE (or Lainé, 1830 - 1911), to whom he left the management of his studio.