Simplify the following text for a Grade 7 native English-speaking person.
Original: In 1536 the Pays de Vaud was taken by the Bernese who remained masters until 1798 when the canton was liberated by the French revolutionary troops ; and in 1803 Vich found itself part of the Swiss Confederation .
Simplified: In 1536 the canton of Vaud was taken by the Bernese who kept it until 1798 when the canton was freed by the French revolutionary troops . In 1803 , Vich joined the Swiss Confederation .