Simplify the following text for a Grade 8 native English-speaking person.
Original: The diarist John Evelyn called him a Scotsman , an epithet repeated by Horace Walpole and tentatively accepted by his later biographer , Verne .
Simplified: The diarist John Evelyn called him a Scotsman . Horace Walpole and his later biographer , Verne , agreed with this .