What is the history of decoursey name in Ireland?

The de Courcy family is of Norman origin, and their name is derived from the town of Courcy in Normandy, France. They first came to Ireland in the 12th century as part of the Anglo-Norman invasion, and they quickly established themselves as one of the most powerful families in the country. The de Courcys were granted large tracts of land in Ulster, and they built several castles, including the famous Carrickfergus Castle. They also founded the town of Newry. The de Courcys played a leading role in the politics of medieval Ireland, and they were often at war with the native Irish clans. In the 16th century, the de Courcys were dispossessed of their lands by the English government, and they were forced to go into exile. However, some members of the family remained in Ireland, and the de Courcy name is still found in the country today.

Here is a more detailed timeline of the history of the de Courcy family in Ireland:

1171: John de Courcy invades Ulster with a force of Anglo-Norman knights and mercenaries. He quickly defeats the native Irish forces and establishes himself as the lord of Ulster.

1177: John de Courcy builds Carrickfergus Castle, which becomes the de Courcy family's main stronghold in Ireland.

1189: John de Courcy is captured by the native Irish forces at the Battle of Downpatrick. He is held prisoner for two years before being released.

1204: John de Courcy dies, and his son, Walter, succeeds him as lord of Ulster.

1210: Walter de Courcy is killed in battle against the native Irish forces. His brother, Hugh, succeeds him as lord of Ulster.

1228: Hugh de Courcy is killed in battle against the native Irish forces. His son, John, succeeds him as lord of Ulster.

1244: John de Courcy is killed in battle against the native Irish forces. His brother, Miles, succeeds him as lord of Ulster.

1247: Miles de Courcy is killed in battle against the native Irish forces. His son, John, succeeds him as lord of Ulster.

1315: John de Courcy is killed in battle against the forces of Edward Bruce, the Scottish king who is attempting to conquer Ireland. His son, Edmund, succeeds him as lord of Ulster.

1333: Edmund de Courcy is killed in battle against the forces of Edward III, the English king. His son, John, succeeds him as lord of Ulster.

1344: John de Courcy is killed in battle against the forces of the O'Neill clan. His son, Miles, succeeds him as lord of Ulster.

1399: Miles de Courcy is killed in battle against the forces of the O'Neill clan. His son, John, succeeds him as lord of Ulster.

1413: John de Courcy is killed in battle against the forces of the O'Neill clan. His son, Miles, succeeds him as lord of Ulster.

1453: Miles de Courcy is killed in battle against the forces of the O'Neill clan. His son, John, succeeds him as lord of Ulster.

1482: John de Courcy is killed in battle against the forces of the O'Neill clan. His son, Miles, succeeds him as lord of Ulster.

1503: Miles de Courcy is killed in battle against the forces of the O'Neill clan. His son, John, succeeds him as lord of Ulster.

1513: John de Courcy is killed in battle against the forces of the O'Neill clan. His son, Miles, succeeds him as lord of Ulster.

1523: Miles de Courcy is killed in battle against the forces of the O'Neill clan. His son, John, succeeds him as lord of Ulster.

1534: John de Courcy is dispossessed of his lands by the English government, and he is forced to go into exile. The de Courcy family's rule in Ulster comes to an end.