Simplify the following text for a Grade 7 native English-speaking person.
Original: Rudi Carrell ( 19 December 1934 , Alkmaar , Netherlands â '' 7 July 2006 , Bremen , Germany ) , born Rudolf Wijbrand Kesselaar , was a Dutch entertainer .
Simplified: Rudi Carrell ( real name Rudolf Wijbrand Kesselaar ) was a very successful showmaster . He was born on December 19 , 1934 in Alkmaar , in the Netherlands .