Simplify the following text for a Grade 13 native English-speaking person.
Original: Giordano Bruno ( 1548 â `` February 17 , 1600 ) , born Filippo Bruno , was an Italian Dominican friar , philosopher , mathematician and astronomer .
Simplified: Giordano Bruno ( 1548 â `` 17 February 1600 ) , born Filippo Bruno , was an Italian philosopher , priest , mathematician , and astronomer .