Simplify the following text for a Grade 13 native English-speaking person.
Original: Oscar Ribeiro de Almeida Niemeyer Soares Filho ( born December 15 , 1907 ) is a Brazilian architect specializing in international modern architecture .
Simplified: Oscar Ribeiro de Almeida Niemeyer Soares Filho ( born December 15 , 1907 ) is a Brazilian architect who is thought to be a very important name in worldwide modern architecture .