Siege of Enniskillen
1594 CE.
Shown on the map at 54.345°, -7.634°.
The siege of Enniskillen took place at Enniskillen in Fermanagh, present day Northern Ireland, in 1594 and 1595, during the Nine Years' War. In February 1594, the English had captured Enniskillen Castle from the Irish after a waterborne assault and massacred the defenders after they surrendered. From May 1594, an Irish army under Hugh Maguire and Cormac MacBaron O'Neill besieged the English garrison in the castle, and in August they defeated an English relief force. A second relief force was allowed to resupply the garrison, but the castle remained cut off. Eventually, in May 1595, the English garrison surrendered to the Irish, who then massacred them.
Text from the Wikipedia article Siege of Enniskillen (1594), licensed CC BY-SA 4.0.