Complex sentence: Nainggolan was born in Antwerp the son of Lizy Bogaerts, a Belgian of Flemish ethnicity who raised him with his three half brothers and his twin sister, and Marianus Nainggolan, an Indonesian of Batak descent who left them with nothing when he was just a child.
Split into simpler sentences: Nainggolan was born in Antwerp the son of Lizy Bogaerts, a Belgian of Flemish ethnicity, and Marianus Nainggolan, an Indonesian of Batak descent. He was raised by his mother, since his father left them with nothing when he was just a child.