The earliest foundations were houses of the Cistercian Order and the Augustinians.
"An Illustrated History of Ireland from AD 400 to 1800"
Mary Frances Cusack
The two clashed, not in creed but in customs; and the Augustinians ultimately prevailed.
"A Short History of England"
G. K. Chesterton
More certain is it that, in the reign of Edward the Confessor, the church at Twynham was held by Secular Canons, who remained there until 1150, when they were displaced by Augustinians, or Austin Canons.
"Bournemouth, Poole & Christchurch"
Sidney Heath