Rathcroghan (Ráth Cruachan)

The ancient royal capital of Connacht and the seat of the legendary Queen Medb.

Rathcroghan (Ráth Cruachan) in County Roscommon is one of the great royal sites of ancient Ireland, and the capital of the kings and queens of Connacht. It is forever linked with the legendary Queen Medb, whose cattle raid begins the epic Táin Bó Cúailnge.

The site spreads across a wide plain of mounds and earthworks, and includes Oweynagat, the 'cave of the cats', said to be a gateway to the Otherworld.

At a glance

  • The ancient royal capital of Connacht, in Co. Roscommon.
  • Associated with the legendary Queen Medb.
  • Includes Oweynagat, a cave seen as a gateway to the Otherworld.

In County Roscommon

Rathcroghan is in County Roscommon, Ros Comáin in Irish, which means “St Comán's wood”.

More in Roscommon

Other places of this kind

The Irish name

The Irish form of Rathcroghan is Ráth Cruachan. You can hear it spoken, and take apart names like it, in the Placename Explorer. The authoritative record for any Irish place-name is logainm.ie.