Who was Saint Barlok or Barlock of Norbury church Ashbourne?

Is it a corruption of St Barnoch / Barrog / Barrwg : "a reputed disciple of the great Welsh St Cadoc, he has left his name to Barry Island, off the coast of Glamorgan, where he lived as a hermit" ("The Book of Saints, a Dictionary of Servants of God canonized by the Catholic Church, compiled by the Benedictine monks of St Augustine's Abbey, Ramsgate", 6th edition 1989