Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Input: Context : Josef Matyas Trenkwald (13 March 1824, Prague -- 28 July 1897 Perchtoldsdorf) was a Czech/Austrian painter, best known for his religious and historical paintings.
Answer : 28 July 1897
Output:
When did Josef Matyas Trenkwald's death occur?