 In the spirit of Enlightenment He wrote the first Latvian-German and German-Latvian dictionaries, wrote the first encyclopedia “The book of high wisdom of the world and nature” (1774), wrote the first illustrated Latvian alphabet book (1787).Gotthard Friedrich Stenders father was a lutheran pastor in Laši parish Hermann Konrad Stender.His grandfather also was a pastor in Selonia region of Duchy of Courland.