found: Méliadus de Léonnoys. Meliadus de Leonnoys, 1532, 1980 (a.e.)p. 5 (Hélie de Boron; putative author of Méliadus de Léonnoys, Arthurian romance composed ca. 1240)
found: Grande encyclopédie, 1904(Élie de Boron; name of doubtful authenticity)
notfound: Dict. des lettres françaises, 1951;Grand Larousse encycl., 1964.
found: Baumgartner, E. "Tristan en prose," in Dictionnaire des œuvres littéraires de langue française, c1994(Tristan en prose: prose romance begun by Luce del Gast, according to the prologue, and completed by Hélie de Boron, according to the epilogue; in both cases, the names are pseudonyms; composed around 1230-1235)
found: Fritz, Jean-Marie. "Tristan en prose," in Dictionnaire des lettres françaises (1994 edition), Moyen Age("Il est possible que la dualité des auteurs--Luce del Gat cité dans les prologues et Hélie de Boron dans les épilogues--soit une trace de cette double rédaction du roman ... De plus, l'auteur de la seconde rédaction, en faisant appel à la figure fictive d'Hélie de Boron (parent et compagnon d'armes de Roert de Boron et également auteur du Guiron), cherche à asseoir la légitimité de son entreprise de remaniement")
found: Hunt, Tony. "Gast, Luce of (supp. fl. c.1230)," in Oxford dictionary of national biography, 2004, viewed online, August 16, 2017("Gast, Luce of (supp. fl. c.1230), supposed writer and translator ... the ostensible translator of the Tristan en prose, according to the prologue contained in many manuscripts of the work ... It is said elsewhere in the work that he abandoned his labours through death and that the completion is due to Hélie de Boron, which appears to be a pseudonym (through the influence of Robert de Boron) representing an entirely fictional person ... The Tristan en prose survives in over eighty manuscripts comprising four principal redactions from the period 1240-1340. The earliest form, representing the combination of Luce and Hélie, is dated to c.1230")
found: Wikipedia, August 16, 2017(in article "Robert de Boron": "His family is unknown, though the second author of the Prose Tristan claimed to be Robert's nephew, calling himself 'Helie de Boron.' This is taken more as an attempt to drop a famous name than a genuine accreditation, however")
found: Bibliothèque nationale de France. BnF autorités, August 16, 2017(under Tristan de Léonois, Arthurian romance of the 13th century (1215-1230): unfounded attributions to Luce de Gat and Hélie de Boron; under Hélie de Boron: variant form: Élie de Boron; language: Old French; author, 13th century; unfounded attribution to him of a version of Tristan de Léonois)
