Charles August, Duke of Saxe-Weimar-Eisenach (1757-1828)
Gotha Illuminati Research Base (here and here).
*1757, †1828, reigning duke of Saxon-Weimar and Eisenach, Weimar, member of the Illuminati under the code name Aeschylus [Strict Observance: Falcone albo Eschilus]
Freemasonry: Lodge “Anna Amalia zu den drei Rosen”, Weimar (feb. 1782)
Illuminati: Feb. 19, 1783, signed an oath; Province VII of the Strict Observance, old division, “Northern Germany”; Subsidiary Prefecture Danneberg (Weimar, Strict Observance)
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Perfectibilists 337:
Karl August, Grand Duke von Saxe-Weimar- Eisenach (1757 Weimar, Germany – 1828 Graditz, Germany)
Order Name: Aeschylus
In 1775 Karl August invited Goethe to visit him in Weimar and shortly after offered the latter a position on his privy council. Goethe accepted the position and worked and resided in Weimar for the rest of his days—becoming an effective politician while at the same time creating an amazing literary legacy. The duchy of Weimar became the literary center of Germany while the friendship between the two was to last a lifetime.
Prince of the Thüringian duchy of Saxe-Weimar, Karl August became the governing duke in 1775. He was a Prussian General in the war against revolutionary France (1792/93), became Weimar Grand Duke in 1815, and was accepted as a member of the Erfurt Academy of the Arts and Sciences Useful to the Public in 1818.
Initiated into Freemasonry in 1782 at the Weimar Lodge Amalia, Karl August also became an Illuminatus in February 1783 and a Regent in the Order in 1784. His alias alludes to Aeschylus (525-456 BC), a Greek playwright and tragedian. The play Prometheus Bound has been traditionally attributed to Aeschylus.