Owill

Owill, or Umhaill, was a Gaelic seafaring lordship around Clew Bay in western Connacht. By the twelfth century the O'Malleys ruled it and lived by fishing and trade.

The lordship later became a vassal of the Mac William Íochtar Burkes. In the sixteenth century Grace O'Malley commanded the clan fleet; in 1593 she sailed to Greenwich to ask Elizabeth I to release her captured sons and brother. After her death about 1603, her son Tibbot na Long succeeded her as the Tudor conquest transformed the Gaelic order.