Rigdzin Kumaradza

Rigdzin Kumaradza (Wyl. rig 'dzin ku mA rA dza) or Kumārarāja aka Shyönnu Gyalpo (gzhon nu rgyal po) (1266-1343) was a student of Melong Dorje and the Third Karmapa Rangjung Dorje and the main teacher of Longchenpa.