translation help?

[Silverleaf_Willow]

Hello, I was asked by a friend in my historical re-enactment group if I could come up with a translation for "Rock of Connacht".
The Shire of Connacht is our Canadian chapter of the Empire of Adria, the "Rock of Connacht" is a local version of the "Stone of Scone".
Any help with this would be greatly appreciated by myself and others.
Thanks,