Henri-Louis Empaytaz (1790–1853), was a Protestant theologian. He was born and died in Geneva.
He was one of the first in the Protestant church where ideas, excitement and denials of the French Revolution, had died in France and Switzerland in the years 1814 to 1816, believed the ground so thoroughly cleaned of all liberal aspirations, they could, and that they should return, in religious matters, to the pure teachings of the sixteenth century.
In his view the Church in Geneva had lost its way and that the dogma of the divinity of Christ had been removed from the symbol of Ministers in Geneva. He joined other pastoralists César Malan, Guers, Ami Bost and other no less absolute in their beliefs, and desiring to live pure lives and they taught that the absolute truth of all that is written in the Bible. This movement was called Le Réveil (The Awakening)
His ideas had a profound effect on Alexander I of Russia and for a time he became a confidant of the emperor's most secret thoughts. Through his contact with the Russian Emperor he believed that he and Madam von Krüdener were in part responsible for the religious aspects of the Holy Alliance. 
- Phillips, Walter Alison (1911). "Alexander I. (tsar)". In Chisholm, Hugh. Encyclopædia Britannica. 1 (11th ed.). Cambridge University Press. pp. 556–559. Endonote:
- Empaytaz, H. L. (1840), Notice sur Alexandre Empereur de Russie (2nd ed.), Paris
- Stunt, Timothy C. F. (2000), From awakening to secession: radical evangelicals in Switzerland and Britain, 1815-35 (illustrated ed.), Continuum International Publishing Group, p. 30, ISBN 978-0-567-08719-5
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