Marius Bak-Andersen is the third child of Kim and Monica Bak-Andersen. He has twin brother Jonas. He was born 27 Mrch 2017.He has older sisters Silje from 2010 and Selma from 2011. He lives with his family in Lyngby, Copenhagen.
Marius and Jonas was born at Herlev Hospital, Copenhagen on 27 March 2016 at 11:26. They were born by emergency c-section at 37+2. They are being watched at home by their mother in the house in Lyngby.