Viscount Belfield is in Viscount Ireland.
On 5th October 1751 Robert Rochfort 1st Earl of Belvedere [aged 43] was created 1st Viscount Belfield by King George II of Great Britain and Ireland [aged 67].
On 13th November 1774 Robert Rochfort 1st Earl of Belvedere [aged 66] died. His son George [aged 36] succeeded 2nd Earl Belvedere, 2nd Viscount Belfield, 2nd Baron Belfield.
On 13th May 1814 George Rochfort 2nd Earl Belvedere [aged 75] died without surviving issue. Earl Belvedere, Viscount Belfield and Baron Belfield extinct.