Oscar Ribeiro de Almeida Niemeyer Soares Filho ( December 15 , 1907 -- December 5 , 2012 ) , known as Oscar Niemeyer ( ) , was a Brazilian architect who is considered to be one of the key figures in the development of modern architecture .
Oscar Ribeiro de Almeida Niemeyer Soares Filho ( December 15 , 1907 -- December 5 , 2012 ) was a Brazilian architect who is thought to be a important name in worldwide modern architecture .