In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: In 1570, Pope Pius V issued his papal bull Regnans in Excelsis, which absolved Catholics from their obligations to the government. Link Information: Pope Pius V (17 January 1504 1 May 1572), Question: When the pope of the Roman Catholic church issued the papal bull that absolved Catholics of obligations to government, how old was he?
Answer: 64