The founders of Rosbercon Abbey were two prominent local families, the Walshes and Graces.
It never seems to have been a religious house of any importance, and little is recorded about it until 1539, when Matthew Fleming, the last abbot, surrendered it to Henry VIII.
[1] The King granted it to John Parker, the Master of the Rolls in Ireland.
[2] It is unclear whether Parker, who lived near Dublin, intended to convert it into a country house, but in the event, it was left to decay.
A sketch of the Abbey, done in 1823, shows a small ruined building, with New Ross in the background.