A History of Indian Medical Literature v3.c43.s6.t2.2

v3.c43.s6.t2.2

The following is known on their chronology: Rūpanayana is posterior to Ravigupta and Igupta, who are quoted by him, and earlier than about 1500;517 Dhruvapāla, Govardhana,518 Mahīdhara and Sanātana lived before Niścalakara, who quotes from their commentaries on the *Yogaśataka*;519 Dhruvapāla and Khyab-hjug-lha are earlier than Bu-ston, whose annotations are based on their works;520 Śrīpūrṇasena is said to belong to the sixteenth century.521