Battle of Antrim
1798 CE.
Shown on the map at 54.722°, -6.231°.
The Battle of Antrim was fought on 7 June 1798, in County Antrim, Ireland, during the Irish Rebellion of 1798 between British troops and Irish insurgents led by Henry Joy McCracken. The British won the battle, beating off a rebel attack on Antrim town following the arrival of reinforcements, but the county governor, the 1st Viscount O'Neill, was fatally wounded.
Text from the Wikipedia article Battle of Antrim, licensed CC BY-SA 4.0.