Question: What is the date of death of Princess Maria Immaculata Of Bourbon-Two Sicilies (1844–1899)'s husband?
Sentence (from "Princess Maria Immaculata of Bourbon-Two Sicilies (1844–1899)"): (14 April 1844, Naples, Kingdom of the Two Sicilies – 18 February 1899, Vienna, Austria) was fifth child and second-eldest daughter of Ferdinand II of the Two Sicilies and his wife Maria Theresa of Austria.
Relevant evidence: No