Gaelic clans were involved in bloodthirsty ethnic-cleansing when they murdered, raped, pillaged and burned with such brutal ferocity it forced Norman settlers to abandon large parts of rural Cork and cower behind the walls of the city for many years.

If your surname is McCarthy, O’Riordan, Twomey or Kelleher and your forebears came from the Lee Valley then they were probably a bloodthirsty bunch involved in ethnic cleansing in the 14th century.