This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

Passage: As Edward was unmarried and had no children, Albert was the heir presumptive to the throne. Less than a year later, on 11 December 1936, Edward VIII abdicated in order to marry his mistress, Wallis Simpson, who was divorced from her first husband and divorcing her second. Edward had been advised by British Prime Minister Stanley Baldwin that he could not remain king and marry a divorced woman with two living ex-husbands. Edward chose abdication in preference to abandoning his marriage plans. Thus Albert became king, a position he was reluctant to accept. The day before the abdication, he went to London to see his mother, Queen Mary. He wrote in his diary, "When I told her what had happened, I broke down and sobbed like a child."
Who was Wallis Simpson's second husband?