Simplify the following text for a Grade 10 native English-speaking person.
Original: His parents were Carmen Olmos de Aguilera Orrego , and Spanish immigrant JosÃ Santos Tornero Monteros , the proprietary of the first public library in Chile .
Simplified: His parents were Carmen Olmos de Aguilera Orrego , and the Spanish immigrant JosÃ Santos Tornero Monteros , who was also the owner of the first public library in Chile .