1186 in Ireland
Events from the year 1186 in Ireland.
Incumbent
Events
- Stephen Ridell appointed as first Lord Chancellor of Ireland.
- Hugh de Lacy the Elder, 1st Lord of Meath, is assassinated.
- Ruaidrí Ua Conchobair is usurped as King of Connacht by his son Conchobar Maenmaige Ua Conchobair.
- Approximate date of the construction of Ardfinnan Castle
Deaths
- 25 July – Hugh de [Lacy, Lord of Meath], 4th Baron Lacy