Simplify the following text for a Grade 7 native English-speaking person.
Original: Michiel Adriaenszoon de Ruyter ( 24 March 1607 â `` 29 April 1676 ) is the most famous and one of the most skilled admirals in Dutch history .
Simplified: Michiel Adriaenszoon de Ruyter ( 1607 â `` 1676 ) was a famous Dutch admiral .