Q: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
Guillaume Emmanuel Guignard, vicomte de Saint-Priest (4 March 1776 in Constantinople -- 29 March 1814) was a French emigre general who fought in the Russian army during the French Revolutionary Wars and the Napoleonic Wars.
A:
In which war did Guillaume Emmanuel Guignard, vicomte de Saint-Priest serve?