Viscount Dungannon
Viscount Dungannon is in Viscount Ireland.
On 17 Feb 1766 Arthur Hill aka Hill-Trevor 1st Viscount Dungannon (age 72) was created 1st Viscount Dungannon, 1st Baron Hill of Olderfleet.
On 30 Jan 1771 Arthur Hill aka Hill-Trevor 1st Viscount Dungannon (age 77) died. His grandson Arthur Hill-Trevor 2nd Viscount Dungannon (age 7) succeeded 2nd Viscount Dungannon.
On 13 Jul 1795 Arthur Hill-Trevor 2nd Viscount Dungannon (age 31) and Charlotte Fitzroy Viscountess Dungannon (age 28) were married at her father's house on Stanhope Street. She by marriage Viscountess Dungannon. She a great x 3 granddaughter of King Charles II of England Scotland and Ireland. 
On 14 Dec 1837 Arthur Hill-Trevor 2nd Viscount Dungannon (age 74) died. His son Arthur Hill-Trevor 3rd Viscount Dungannon (age 39) succeeded 3rd Viscount Dungannon.
On 11 Aug 1862 Arthur Hill-Trevor 3rd Viscount Dungannon (age 63) died. Viscount Dungannon extinct. Arthur Edwin Hill aka Hill-Trevor 1st Baron Trevor (age 42) inherited his estates including those at Brynkinalt, and changed his surname from Hill to Hill-Trevor.