Question: Who is the paternal grandmother of Charlotte Marie Of Saxe-Jena?
Sentence (from "Charlotte Marie of Saxe-Jena"): The early death of her two brothers and older sister before her own birth left Charlotte Marie as the only child of her parents for several years, until the birth of her younger brother and future 2nd Duke of Saxe-Jena, Johann Wilhelm in 1675.
Relevant evidence: No