Tags: Christian Bishop.
Heber MacMahon (Irish Éimhear Mac Mathúna) was bishop of Clogher and general in Ulster. He was educated at the Irish college Douay and at Louvain and ordained a Roman Catholic priest 1625. He became bishop of Clogher in 1643 and a leader among the confederate Catholics. As a general of the Ulster army he fought Oliver Cromwell at the Battle of Scarrifholis in 1650. He was defeated taken prisoner and executed the same year.