Roack revealed many spelling variations including Roche, Roach, Roache, LaRoche, LaRoach, DeLaRoach, Roack, Roch, Roiche, St.Roche, Rocheland, Rochellan and many more. First found in County Limerick , where they were granted lands by Strongbow whom they accompanied into Ireland during the Anglo- Norman invasion of 1172.   More More about the