Simplify the following text for a Grade 13 native English-speaking person.
Original: Famous and extremely influential while he lived , Caravaggio was almost entirely forgotten in the centuries after his death , and it was only in the 20th century that his importance to the development of Western art was rediscovered .
Simplified: Infamous while he lived , Caravaggio was forgotten almost immediately after his death , and it was only in the 20th century that his importance to the development of Western art was rediscovered .