Simplify the following text for a Grade 6 native English-speaking person.
Original: This dates back to an ancient right of the Manx to appeal to the Crown of England against the decisions of the Lord of Mann , who in previous times was the supreme insular legal authority , and was explicitly confirmed by the Privy Council in their decision of Christian v. Corren in 1716 , several years before revestment .
Simplified: The right still exists , even though the Lord of Mann is now the Crown of England . The right was confirmed by the Privy Council in their decision of Christian v. Corren in 1716 , several years before revestment .