Sanghabhadra
Sanghabhadra (Skt. Saṅghabhadra; Tib. དགེ་འདུན་བཟང་པོ། or འདུས་བཟང་, Wyl. dge 'dun bzang po or 'dus bzang, which is most likely just a spelling mistake) — this Indian master belonged to the orthodox Kashimiri Vaibhashika school and was the teacher of Vasubandhu. After Vasubandhu had written his auto-commentary on the Treasury of Abhidharma, where he refuted many positions of the Vaibhashikas, Sanghabhadra wrote a commentary on the Treasury himself, the Abhidharmakośa-śāstra-kārikā-bhāṣya, defending the Vaibhashika's position. He traveled to Nalanda to debate with Vasubandhu, yet Vasubandhu had already left for Nepal, most likely unwilling to debate his former teacher out of deference, and Sanghabhadra passed away shortly after.
