Simplify the following text for a Grade 12 native English-speaking person.
Original: After the Revestment ( when the rights of the Lord of Man were `` placed in '' or `` vested '' in the King of Great Britain ) in 1765 , the Lieutenant Governor and his officials were the agents of the British Government , and not democratically responsible to the Manx people .
Simplified: After the Revestment in 1765 the Lieutenant Governor and his officials were the agents of the British Government , and not democratically responsible to the Manx people .