Duke Johann Georg I of Saxe-Eisenach was a German nobleman born in 1647. He ruled the duchy of Saxe-Eisenach from 1686 until his death in 1698. Johann Georg I was known for his efforts to promote education and culture in his territory, supporting the establishment of schools and the arts. During his reign, Johann Georg I also focused on strengthening the economy of Saxe-Eisenach. He worked to improve agricultural practices and foster trade, which contributed to the prosperity of his duchy. His leadership helped lay the groundwork for future development in the region.