Sage · All traditions · North India
Varatantu
Kautsa's teacher, who first asks no fee and then, pressed, asks fourteen crores, one for each branch of learning.
Sources: Raghuvamsha of Kalidasa, canto 5, Sanskrit with word-by-word gloss (Giirvaani, on sanskritdocuments.org), with sanskritsahitya.org · see Varatantu's web