Buddhagupta
Buddhagupta (Skt.; Tib. བུདྡྷ་གུཔྟ་), sometimes called Buddhagupta-nātha (Skt.; Tib. བུདྡྷ་གུཔྟ་ནཱ་ཐ་) or Buddhanātha, was a sixteenth century Indian tantric master. His Tibetan disciple Tāranātha wrote his biography around the year 1601.