Simplify the following text for a Grade 8 native English-speaking person.
Original: He was engaged by Archduke Leopold Wilhelm of Austria , the governor of the Spanish Netherlands , to acquire artworks in Oliver Cromwell 's England in 1655 .
Simplified: He was hired by Archduke Leopold Wilhelm of Austria , the governor of the Spanish Netherlands in 1655 . His job was to find artworks in Oliver Cromwell 's England in 1655 .