I don't think "know" is the appropriate term, since I'm just repeating what I think I learned on here, but yes, as far as I'm aware Kinsale Lager was always brewed at Beamish & Crawford.
Kinsale had a stall at Farmleigh. It seems someone bought the brand and the lager is (still) being contract brewed at Beamish.
The brewery is winging it's way to Templemore, and White Gypsy will be up and running by November.