Simplify the following text for a Grade 10 native English-speaking person.
Original: In Western Europe , the rise of powerful monarchs , towns , and an improving economy weakened the manorial system through the 13th and 14th centuries , and serfdom was rare following the Renaissance .
Simplified: In Western Europe , the rise of powerful monarchs , towns , and an improving economy weakened the manorial system through the 13th and 14th centuries . Serfdom was not common after the Renaissance .