Shatrugna

Son of Dasharatha and Sumitra.

In the Ramayana the four sons of Dasharatha marry as follows
Rama – Sita, Lakshmana – Urmila, daughters of king Janaka.
Bharata – Mandavi, Shatrugna – Shrutakirti, daughters of king Janakas brother, king Kushadhvaja.

Lakshmana and Urmila – including marriage of Shatrugna and Bharata
http://kathaa-amrit.blogspot.com/2014/04/lakshman-and-urmilla.html

Lakshmana and Urmila
http://hindumythologyforgennext.blogspot.com/2014/02/lakhmana-and-urmila.html

Rama wins Sita
http://talesfrommythology.blogspot.com/2011/03/beginning.html?q=raama+meets