Question: When did Johann Leopold, Hereditary Prince Of Saxe-Coburg And Gotha's mother die?
Sentence (from "Princess Victoria Adelaide of Schleswig-Holstein"): Princess Victoria Adelaide of Schleswig-Holstein-Sonderburg-Glücksburg (31 December 1885 – 3 October 1970) was the consort of Charles Edward, Duke of Saxe-Coburg and Gotha and is the maternal grandmother of Carl XVI Gustaf of Sweden.
Relevant evidence: Yes