What is tsean phobail?

Some articles on tsean phobail:

An Seanphobal - History - Place Name
... who had a monastery in Cill Comán in An tSean Phobail, having baptised St ... reasons It once was part of an older parish pairing that consisted of Ardmore and An tSean Phobail ... who at the time would have spoken Irish) referred to the area as An tSean Phobail after it left Ardmore to join in a new parish pairing with An Rinn in the early ...
An Seanphobal
... An tSean Phobail (anglicised as Old Parish) is a village in west County Waterford, Ireland ... speaking area of Gaeltacht na nDéise An tSean Phobail, as it is known locally, is a large parish covering about 35 square kilometres with approximately 8 km of ... The closest centres of population to An tSean Phobail are Dungarvan and the County Cork town of Youghal ...