Additional Note 1
The other four were:

• Orient et Occident.  Paris: Payot, 1924, 1930
• L'ésoterisme de Dante.  Charles Bosse, 1925
• Le roi du monde.  Paris: Librairie Charles Bosse, 1927
• Autorité spirituelle et pouvoir temporel .  Paris: J. Vrin, 1929

Additional Note 2
The others were:

• demonstrating the origins of Christianity in Atlantis
• preparing for the reign of Christ the King in the year 2000, and
• teaching of the sacred name Aor-Agnis as the key to all knowledge.

The Jesuit was Victor Drevon (1820-80) and the Spanish baron was Séverin Alexis de Savachaga (1840-1918). Noillat had succeeded Savachaga, and Hiéron had become more orthodox under his leadership. See PierLuigi Zoccatelli, "De Regnabit au Bestiaire du Christ.  L'itinéraire intellectuelle d'un symboliste chrétien: Louis Charbonneau-Lassay," unpublished paper delivered at a conference "En occasion des commémorations du cinquantenaire de la mort de Louis Charbonneau-Lassay," held in Loudun, 7 December 1996.