found: Author's Le tutu, c1991:t.p. (Princesse Sapho) p. 9, etc. (possibly a pseud. of Léon Genonceaux)
found: The tutu: morals of the fin de siècle, ©2013:title page (Léon Genonceaux as Princess Sappho)
found: OCLC database, 22 October 2015(access points: Sapho, Princesse Sapho; usage: Princesse Sapho)
found: National Library of France in VIAF, 22 October 2015(access point: Princesse Sapho)
found: SUDOC (France) in VIAF, 22 October 2015(access point: Princesse Sapho, 18..- )
found: German National Library in VIAF, 22 October 2015(access point: Sapho, Princesse)
found: ISNI, 22 October 2015(access point: Princesa Safo)
notfound: Dict. des pseud.;Dict. de biog. fr.;NUC pre-56;Dict. des lett. fr.;BN.