Complex sentence: Asanga (born around 300 C.E.) was a great exponent of the Yogacara School who was a native of Gandhara in north India in the fourth century CE. Born as a Brahmin's son, he first followed the Abhidharma system but was later converted to Mahayana.
Split into simpler sentences: Asanga (born around 300 C.E.) was a great exponent of the Yogacara. Born in Gandhara in north India as a Brahmin's son, he first followed the Abhidharma system but was later converted to Mahayana.