Question: When did Johann Leopold, Hereditary Prince Of Saxe-Coburg And Gotha's mother die?
Sentence (from "Kelly Rondestvedt"): Through her marriage to Hubertus, Hereditary Prince of Saxe- Coburg and Gotha, the heir apparent to the defunct ducal throne of Saxe- Coburg and Gotha, she is a princess of the House of Saxe- Coburg and Gotha.
Relevant evidence: No