Simplify the following text for a Grade 10 native English-speaking person.
Original: Louise de Coligny ( ChÃ cents tillon-sur-Loing , 23 September 1555 -- Fontainebleau , 13 November 1620 ) was the daughter of Gaspard de Coligny and Charlotte de Laval and the fourth and last spouse of William the Silent .
Simplified: Louise de Coligny ( ChÃ cents tillon-sur-Loing , 23 September 1555 - Fontainebleau , 13 November 1620 ) was the fourth wife of Prince William the Silent . She was the daughter of an important French protestant leader , Gaspard de Coligny .