1420 in Ireland

Events from the year 1420 in Ireland.

Incumbent

• Lord: Henry V

Events

• Luttrellstown Castle was completed.

Births

• 24 November – James Butler, 5th Earl of Ormonde, Lord Lieutenant (d. 1461)

Deaths

• Giolla na Naomh O hUidhrin, Irish historian and poet
• Thomas FitzGerald, 5th Earl of Desmond

References