Question: Who is Fredericka Elisabeth Of Saxe-Eisenach's paternal grandmother?
Sentence (from "Fredericka Elisabeth of Saxe-Eisenach"): Born in Altenkirchen, she was the seventh of eight children born from the marriage of John George I, Duke of Saxe-Eisenach and Johannetta, Countess of Sayn-Wittgenstein-Sayn-Altenkirchen.
Relevant evidence: Yes