William McCaghwell explained

William McCaghwell, brother of Eugene McCaghwell, Bishop of Clogher, was a priest in Ireland in the early 16th century.^[1] He was Dean of Clogher until his death in 1508.^[2]

References

1. “A New History of Ireland” T. W. Moody, F. X. Martin, F.J. Byrne and Cosgrove, A: Oxford, OUP, 1976
2. "Fasti Ecclesiae Hibernicae: The succession of the prelates Volume 3" Cotton, H. p86 Dublin, Hodges & Smith, 1848-1878