Śaṅkaranandana
Śaṅkaranandana (fl. c. 9th or 10th century), (Tibetan: Bde byed dga’ ba) was a Mahayana Buddhist philosopher, and a brahmin lay devotee (upāsaka) active in Kashmir in the epistemological (pramana) tradition of Dignaga and Dharmakīrti. He was quite influential in both Kashmir and Tibet, and became known as "the second Dharmakīrti," and “the Great Brahmin.”
Śaṅkaranandana is cited by both Kashmiri Shaiva authors like Abhinavagupta and by Tibetan Buddhist authors and translators. Vincent Eltschinger states that he was "the main interlocutor of the Saiva Pratyabhijña school and as one of the most influential thinkers among the early generations of Tibetan philosophers." His influence on Kashmir Shaiva thinkers was such that Abhinavagupta even calls Śaṅkaranandana his "guru" in Mālinīvijayavārttika and speaks of Śaṅkaranandana's enlightenment in another text (the interpretation of this is disputed however).