Question: What is the date of death of Prince Leopold, Duke Of Brabant's mother?
Sentence (from "Prince Leopold, Duke of Brabant"): Prince Leopold of Belgium, Duke of Brabant, Count of Hainaut (12 June 1859 – 22 January 1869), was the second child and only son of King Leopold II of Belgium and his wife, Marie Henriette of Austria, and heir apparent to the Belgian throne.
Relevant evidence: Yes