Over the next century, there were successive evictions as monks and secular priests alternated in possession of the monastery; this was finally resolved in favour of the secular priests when the church become collegiate around 1194.
 The canons of Westbury College were each supported by revenues from one of the areas around Westbury on Trym, including Aust, Henbury and Lawrence Weston.

The great reformist John Wycliffe was a canon from 1362 until his death in 1384, although in 1367 he was accused of neglecting his duties as prebendary of Aust due to his long absence.
The prominent Bristol merchant William Canynge was dean of the college from 1469 until his death in 1474.

In 1544, with the Dissolution of the Monasteries, the church became a parish church within the new Bristol diocese, and the residential buildings of Westbury College passed into the hands of Sir Ralph Sadler.
Over the next century, there were successive evictions as monks and secular priests alternated in possession of the monastery; this was finally resolved in favour of the secular priests when the church become collegiate around 1194.  The canons of Westbury College were each supported by revenues from one of the areas around Westbury on Trym, including Aust, Henbury and Lawrence Weston.
The great reformist John Wycliffe was a canon from 1362 until his death in 1384, although in 1367 he was accused of neglecting his duties as prebendary of Aust due to his long absence. The prominent Bristol merchant William Canynge was dean of the college from 1469 until his death in 1474.
In 1544, with the Dissolution of the Monasteries, the church became a parish church within the new Bristol diocese, and the residential buildings of Westbury College passed into the hands of Sir Ralph Sadler.
Holy Trinity Church, Westbury on Trym