Sanghabhadra
Saṅgabhadra (Skt; 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, Saṅgabhadra wrote a commentary on the Treasury himself, the Abhidharmakosa Sastra Karika Bhasya, trying to defend the Vaibhashika's position. He travelled to Nalanda to debate with Vasubandhu, but Vasubandhu left for Nepal, most likely unwilling to debate his former teacher out of deference, and Saṅgabhadra passed away shortly after.
