The Barom Kagyü traces its source back to the layman Barompa Darma Wangchug (1127 - 1199/1200).
Barompa was a disciple of some of the most distinguished masters of his time including Gampopa (1079 - 1153), Taglung Thangpa Tashi Pal (1142-1210) and Jigten Gonpo Rinchen Pal (1143-1217).
The Barom Kagyü, which formed around him, is considered to have been one of the four Great Kagyü Orders.
In keeping with its lay origins, the order which was primarily a Mahāmudra lineage, was transmitted within a lay hereditary lineage, primarily in Kham.
Over the centuries this lay order maintained close contacts with the Karma Kagyü, the Drikung Kagyü, and the Shangpa Kagyü; Orders and it's doctrine/transmission lineage survived into the present century.
Some western scholars report that the lineage died out long ago but there remain a few Monasteries (Chodrak Monastery) in the Nangchen principality of Kham as well as recently branches in Malaysia and Australia.
It is also reported that in the 12th or 13th century the Nyingma Ripa Order was established by the Senge Wangchuk a member of the Barom Kagyü.
Below you find an very incomplete lineage tree derived from the this webpage with links to a few external biographies.