What is kumaraja?

Some articles on kumaraja:

Longchenpa - Biography
... Kumaraja) from whom he received the Dzogchen empowerment and teachings in the mountains, the uplands of Yartökyam at Samye where he was traveling from valley to ... that just prior to the arrival of Longchenpa, Kumaraja related to his disciples "Last night I dreamt that a wonderful bird, which announced itself to be a divine bird, came with a ... Therefore, someone will come to hold my lineage." Kumaraja accepted no outer tribute from Longchenpa for the teachings he received as Kumararaja through his supernormal cognitive powers ...