Venerable Ru De started a series of videos on the life of Master Atiśa.
check it out here (in Chinese):
Some other relevant references from Wiki:
Venerable Ru De’s latest video on Master Atisa
Venerable Ru De shared something I found very useful for my own understanding of the various Teachings. He helped trace the lineage from the Bodhisattvas to the various Masters and to Master Atisa.
Watch the video from the 11 min mark: