Casey (No.2) family genealogy
Of Dublin, Westmeath, and Longford
Arms: Ar. a chevron between three falcons' heads erased, gu. Crest: A hand fesseways, issuing from a cloud.
ROBERT CASSE married Margaret Caddie, and had:
2. William, who married Joanna, daughter of —— Blanchfield, and had:
3. Stephen, who m. Anastace Young, and had:
1. Stephen, of whom presently;
2. Symon, who married Margaret, daughter of —— Cleere, and had two children — one of whom was John, who married Honora White, and had a daughter Anastasia.
4. Stephen (2): the elder son of Stephen; m. Kath. Morphee, and had:
1. John, of whom presently;
2. Patrick, who had William, who had Margaret.
5. John: the elder son of Stephen (2); m. Rose, dau. of —— Cantwell, and had:
6. John, who m. Alsona Swaine, and had:
7. Stephen (3), who m. Lucia Walsh, and had:
1. Lawrence, of whom presently;
2. Joanna, who m. George Burke.
8. Lawrence: son of Stephen (3); was Supervisor of the Port of Dublin; m. Joanna Andrews, and had:
9. William Casey, of Ballygaveran.
This family is descended from the same ancestor as "Casey" No. 1. These O'Caseys were lords of Saithne, in the County of Dublin (a territory which was co-extensive with the barony of Balrothery, West), of which they were dispossessed by DeLacy at the time of the Anglo-Norman Invasion:
O'er Saithne of Spears (here Delvan rolls his flood),
O'Casey rules, whose sword is stained with blood.—O'Dugan.
The O'Caseys were also styled lords of Magh Breagh or Bregia, which comprised five of the thirteen Triocha Ceads of the ancient principality of Meath. Saithne was a subdivision of Bregia of which the O'Caseys assumed sovereign authority. Bregia extended from Dublin City to Beallach Brec, west of Kells, and from the Hill of Howth, to the mountain of Fuad on the south of Ulster. We read in the Irish Annals, that:
| A.D. | 1018. | Oisin O'Casey, lord of Saithne and Fingal, was slain. |
| 1023. | Ainbeth, lord of Saithne, was slain. | |
| 1049. | Torloch O'Casey was put to death. | |
| 1045-1061. | Mention is made of Garvey O'Casey, "lord of Breagh." | |
| 1066. | Mulcarn O'Casey, lord of Bregia, was slain. | |
| 1073. | Maolmora O'Casey, lord of Breagh, and his kinsman Ruark O'Casey, were killed in a domestic feud. | |
| 1140. | Donal, lord of Saithne, died, and was succeeded by his brother Flatherty. | |
| 1146. | Cathasach O'Casey; and Cormac O'Casey, Archbishop of Leinster, died. | |
| 1153. | Donal O'Casey, lord of Saithne, was slain. | |
| 1171. | Ivar O'Casey's wife died, she was named Tailté, and was dau. of O'Melaghlin, King of Meath. | |
| 1179. | Ivar died. | |
| 1323. | Giolla Airnin O'Casey, erenach of Cluan-da-rath, died. This place is now named Clondra, barony of Longford. | |
| 1381. | Thomas Casey, Governor of Athlone Castle, for the English. | |
| 1388. | Thomas Casey, Governor, died; his son John succeeded him. | |
| 1367. | William O'Casey was consecrated Bishop of Ardagh. | |
| 1370. | William, Bishop of Ardagh, died; was interred in his Cathedral. | |
| 1542. | Thomas Casey obtained from Henry VIII. a grant of the Carmelite Monastery of Athboy, Co. Meath, with all the appurtenances, including a Castle. The country around Athboy was called Leuighne; it forms and gives name to the now barony of "Lune," Co. Meath. |