Question: What is the date of death of Ernst Gunther, Duke Of Schleswig-Holstein's mother?
Sentence (from "Princess Adelheid of Hohenlohe-Langenburg"): Princess Adelheid of Hohenlohe-Langenburg (20 July 1835 – 25 January 1900) was Duchess of Schleswig-Holstein, a niece of Queen Victoria of the United Kingdom, a cousin of King Edward VII, and the mother-in-law of Emperor Wilhelm II of Germany.
Relevant evidence: Yes