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 : Andrzej Jastrzebiec, also known as Andrzej Wasilko or Andrzej Polak, (died 1398) was a Polish Catholic priest and diplomat, a first bishop of Seret and of Vilnius.
Answer : 1398
Output:
On what date did Andrzej Jastrzebiec die?