Tsongkhapa (Tibetan: ཙོང་ཁ་པ་, [tsoŋˈkʰapa], meaning: "the man from Tsongkha" or "the Man from Onion Valley", c. 1357–1419) was an influential Tibetan Buddhist monk, philosopher and tantric yogi, whose activities led to the formation of the Gelug school of Tibetan Buddhism.
His philosophical works are a grand synthesis of the Buddhist epistemological tradition of Dignāga and Dharmakīrti, the Cittamatra philosophy of the mind, and the madhyamaka philosophy of Nāgārjuna and Candrakīrti.
Bhāviveka, also called Bhāvaviveka (traditional Chinese: 清辯; ; pinyin: Qīngbiàn; Wylie: slob dpon bha bya, skal ldan, legs ldan), and Bhavya was a sixth-century (c. 500 – c. 570) madhyamaka Buddhist philosopher. Alternative names for this figure also include Bhavyaviveka, Bhāvin, Bhāviviveka, Bhagavadviveka and Bhavya. Bhāviveka is the author of the Madhyamakahrdaya (Heart of the Middle), its auto-commentary the Tarkajvālā (Blaze of Reasoning) and the Prajñāpradīpa (Lamp for Wisdom).
In Tibetan Buddhism Bhāviveka is regarded as the founder of the svātantrika tradition of mādhyamaka, as opposed to the prāsaṅgika madhyamaka of Chandrakirti.