If it is any consolation I was chatting to a descendant of Red Hugh the other day. A nice lad who is just engaged to be married. The senior O'Donnell is I believe in Spain still and I think I'm right in saying he speaks only Spanish.Yes, Kinsale is the name of the place where the main battle took place.
It's a while since I read up on that period/events, but afair some Irish lord (neither Hugh Ruadh Ó Domhnaill nor Hugh Red O'Neill) had wanted the Spanish to land elsewhere from their preferred landing place for his own benefit, and most did - in Cork - which caused that long march from the north. The Spanish in Cork were effectively corralled by the English who were also in a pathetic and unhealthy condition. Irish "logistics" were utterly appalling.
Rather than looking up my records (which are in storage anyway), I'll wait for someone like Mitsui2 to to correct the error of my remembrances if s/he can be bothered.
As for the two Hughs, exile for both of them and an early death for Hugh Ruadh Ó Domhnaill away from his own land. Tragic.
The family are still very well connected around Europe.