Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

[EX Q]: Hans Ernst von Kottwitz (1 September 1757 -- 13 May 1843) was a German Pietist and philanthropist.
[EX A]: What was Hans Ernst von Kottwitz's nationality?

[EX Q]: On at least one occasion they succeeded and formed the Kingdom of Kurdistan, which lasted from September 1922 until July 1924.
[EX A]: Which year did Kingdom of Kurdistan end?

[EX Q]: Bolingbroke then reigned as King Henry IV of England (1399--1413), the first of the descendants of John of Gaunt to hold the throne of England.
[EX A]:
What was John of Gaunt's child's name?