Explain simply why no is the correct answer to: Yes / no, is the following a verifiable fact?
"Lord Voldemort held several castles in England during the 16th and 17th centuries.". Explanation:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Lord Voldemort was not a British noble, he was a villain in Harry Potter.