St. Mary's Abbey, Dublin St. Mary's Abbey, Dublin St. Mary's Abbey was a former Cistercian abbey located near Abbey Street in Dublin, Ireland. Its territory stretched from the district known as Oxmanstown down along the River Liffey until it met the sea. It also owned large estates in other parts of Ireland. It was one of several liberties that existed in Dublin since the arrival of the Anglo-Normans in the 12th century, which gave it jurisdiction over its lands. The abbey was founded by the Irish king Máel Sechnaill mac Máele Ruanaid (died 862) in 846, according to the Annals of the Four Masters.
River Dun, Northern Ireland River Dun, Northern Ireland The River Dun, also known as the Glendun River (in Irish: "Abhann Duinne", brown river) is a river in County Antrim, Northern Ireland. It runs through Glendun, one of the nine Glens of Antrim. The river is named after its brown colour, which comes from the peat bogs at its source on the slopes of Slievenanee on the Antrim Plateau. The source of the river is a few hundred metres from that of the River Bush, which flows north-east to meet the sea at Bushmills. Cushendun ("Bun Abhann Duinne", "foot of the River Dun" in Irish