Iveagh

Iveagh was a Gaelic territory in what is now County Down, ruled by the Magennis family from Rathfriland. Its chiefs had been vassals of the Norman earldom of Ulster, which collapsed in 1333.

The Magennises expanded east to Dundrum and later made terms with the English crown; several chiefs were knighted in 1542. Art Roe Magennis nevertheless joined Hugh O'Neill in the Nine Years' War. In 1607–1610 the crown divided Iveagh into fifteen freeholds, ending the unified lordship.