Dictionary of Battles / From the Earliest Date to the Present Time

by Thomas Benfield Harbottle

Blackwater (O'Neill's Rebellion).

Fought 1598, between 5,000 Irish rebels under Hugh O'Neill, and 5,000 English under Sir Henry Bagnall, the English Marshal. Bagnall was defeated with a loss of 1,500 and all his ammunition and baggage, while he himself was killed by O'Neill.