The Trigartha kings belonged to the Katoch Dynasty. They were of Rajput origin and of the Chandravanshi Kshatriya lineage i.e., warriors from the Vedic Moon God. These fearless warriors were expert sword (kharag) fighters.

In fact, there is a legend which claims that the very first Raja of the Katoch family of the House of Kangra, came to life from the perspiration on the brow of the goddess who is enshrined at Kangra. This was in the year 4300 BC, and the king was Rajnaka Bhoomi Chandra. He was the founder of the Katoch Dynasty and the first of 500 kings of this line.