Topic summary
County of Cavan
Extracted from the Wikipedia article County Cavan.
History
Historically, the Ui BriuinKingdom of Breifne was part of the western province of Connacht ruled over by the O'Rourke clan until around 1256 when under Norman occupation the kingdom was split in half. West Breifne still ruled by O'Rourkes and East Breifni ruled by O'Reillys. During the sixteenth century in the reign of Queen Elizabeth I the county of Cavan was formed and transferred to Ulster from 1584, following the composition of Breifne. In the south, the Lough Sheelin area was part of Leinster until the late 14th century.