Background
He was the second son of Johann Georg I, Duke of Saxe-Eisenach and Johannetta of Sayn-Wittgenstein.
He was the second son of Johann Georg I, Duke of Saxe-Eisenach and Johannetta of Sayn-Wittgenstein.
Two years later (1686), Johann Georg succeeded his father when he died. In Kirchheim unter Teck on 20 September 1688 Johann Georg married with Sophie Charlotte of Württemberg. This union was childless.