The third born Pandava – son of Indra and Kunti. As Son of Kunti he is Kaunteya.
He was married with Draupadi and Krishna’s half-sister Subhadra, their son was Abhimanyu.
Find the story in the first parts of Mahabharata – from Bharata to Pandu
http://hindumythologyforgennext.blogspot.com/2012/07/mahabharatha-chapter-1-emperor-bharat.html
Read about Arjuna
http://hindumythologyforgennext.blogspot.com/2014/06/the-birth-of-mighty-warrior-prelude.html
Read about Arjuna’s names
http://www.lifestalker.com/2017/04/names-of-arjuna.html