The Battle of Knockdoe took place on 19 August 1504 at Knockdoe, in the Parish of Lackagh (Irish Leacach), County Galway, between two Anglo-Irish lords—Gerald FitzGerald, Earl of Kildare, the Lord Deputy of Ireland, and Ulick Fionn Burke, 6th Clanricarde (d.1509)—along with their respective Irish allies. The cause was a dispute between Maelsechlainn mac Tadhg Ó Cellaigh (Mod.
The Battle of Knockdoe took place on 19 August 1504 at Knockdoe, in the Parish of Lackagh (Irish Leacach), County Galway, involving two Anglo-Irish lords—Gerald FitzGerald, Earl of Kildare, the Lord Deputy of Ireland, and Ulick Fionn Burke, 6th Clanricarde (d.1509)—along with their respective Irish allies. The underlying cause was a disagreement between Maelsechlainn mac Tadhg Ó Cellaigh (Mod.