John George I of Saxony was a German prince who ruled as the Elector of Saxony from 1656 until his death in 1691. He was born on March 20, 1613, and was a member of the House of Wettin. His reign was marked by efforts to strengthen the economy and improve the administration of his territory. During his rule, John George I focused on rebuilding Saxony after the devastation of the Thirty Years' War. He promoted trade and industry, which helped to revitalize the region. His leadership contributed to the cultural and economic development of Saxony in the late 17th century.