The invented title of "Viscount Crichton" is used as a courtesy title for the Earl's heir apparent. The family seat is Crom Castle, near Newtownbutler, County Fermanagh, Northern Ireland. The heir presumptive is the present holder's second cousin once removed, Charles David Blayney Crichton (born 1953). The heir presumptive's heir apparent is his son, Oliver Charles Martin Crichton (born 1995).