Heinrich Cornelius Agrippa von Nettesheim (15 September 1486 – 18 February 1535) was a German magician, occult writer, theologian, astrologer, and alchemist.

Among other activities created the Transitus Fluvii, Malachim, and Celestial Alphabets, c. 1525.

Influenced many people, including John Dee.

More information on the Wikipedia page [1] and works by him can be found here [2].