Question: What is the date of death of Johannetta Of Sayn-Wittgenstein (1632–1701)'s husband?
Sentence (from "Johannetta of Sayn-Wittgenstein (1632–1701)"): She was also Landgravine of Hesse-Braubach by marriage to John, Landgrave of Hesse-Braubach, and Duchess of Saxe-Marksuhl (later Saxe-Eisenach) by marriage to John George I, Duke of Saxe-Eisenach.
Relevant evidence: Yes