Detailed 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.
Q: Context : Saint Mochta, Mochtae, or Mahew (died 20 August 535), in Latin sources Maucteus or Mauchteus, was the last surviving disciple of St. Patrick.
Answer : 535
A:
The death of Mochta occured on what date?