The title Earl of Tyrconnell has been created four times in the Peerage of Ireland. It was first created in 1603, for Rudhraighe Ó Domhnail (Rory O'Donnell), formerly King of Tír Chonaill (or Tyrconnell), along with the subsidiary title Baron Donegal. The 1st Earl was succeeded by his son Hugh, Lord Donegal, but both titles were attainted in 1614. Following the self-exile of the Gaelic aristocracy in 1607, and the ensuing Ulster Plantation, it was created a second time in 1661 for the 2nd Viscount FitzWilliam, but became extinct on his death in 1667.(See also: Viscount Tyrconnel)