As you can see, I've been experimenting with Google. The closest I can get is:

Rialtas Sealadach na hÉireann
Provisional Government of Ireland
        
I Gcuimhne ar Éirí Amach 1916
In Memory of the 1916 Rebellion

Google doesn't recognize "Aiseirge".

Bryn, Google was pretty confused by your Welsh. I only recently discovered Google Translate, and so far, I've been impressed with it. It not only translates better than Babelfish, but it has a wider range of languages.

I don't read or speak either Irish or Welsh. I only know a bit of French, and how to use computers.