Question: Who is the paternal grandmother of Fredericka Of Saxe-Gotha-Altenburg?
Sentence (from "Prince John August of Saxe-Gotha-Altenburg"): Johann August of Saxe- Gotha-Altenburg( 17 February 1704 – 8 May 1767), was a German prince, member of the House of Saxe- Gotha- Altenburg.
Relevant evidence: No