 Similarly, the Irish-establishment of Abbeyknockmoy in County Galway was founded by King of Connacht, Cathal Crobhdearg Ua Conchobair, who died a Cistercian monk and was buried there in 1224.By the end of the 13th century, the Cistercian houses numbered 500.At the order's height in the 15th century, it would have nearly 750 houses.