Viscount Melbourne of Kilmore in County Cavan is in Viscount Ireland.
The London Gazette 12146. 23rd December 1780. Also like Letters Patent, containing His Majesty's Grants of the Dignity of a Viscount of the said Kingdom unto the following Noblemen, and their Heirs Male, by the Names, Stiles and Titles as undermentioned, viz.
James Baron Lifford, His Majesty's Chancellor of Ireland, Viscount Lifford, of Lifford, in the County of Donegall.
Otway Lord Desart, Viscount Desart, of Desert, in the County of Kilkenny.
John Baron Erne [aged 49], Viscount Erne, of Crom Castle, in the County of Fermanagh. [Mary Caroline Hervey Countess Erne [aged 27] by marriage Viscountess Erne of Crom Castle in County Fermanagh.]
Barry Lord Farnham, Viscount Farnham, of Farnham, in the County of Cavan.
Simon Lord Irnham [aged 67], Viscount Carhampton, of Castlehaven, in the County of Cork.
Bernard Lord Bangor [aged 61], Viscoount Bangor, of Castleward, in the County of Downe. [Ann Bligh Viscountess Bangor by marriage Viscountess Bangor of Castleward in County Downe.]
Penyston Lord Melbourne [aged 35], Viscount Melbourne, of Kilmore, in the County of Cavan. [Elizabeth Milbanke Viscountess Melbourne [aged 29] by marriage Viscountess Melbourne of Kilmore in County Cavan.]
James Lord Clifden [aged 46], Viscount Clifden, of Gowran, in the County of Kilkenny.
John Lord Naas [aged 80], Viscount Mayo, of Monecrouer.
On 22nd July 1828 Penistone Lamb 1st Viscount Melbourne [aged 83] died. His son William [aged 49] succeeded 2nd Viscount Melbourne of Kilmore in County Cavan, 3rd Baronet Lamb of Brocket Hall in Hertfordshire.
On 24th November 1848 William Lamb 2nd Viscount Melbourne [aged 69] died. His brother Frederick [aged 66] succeeded 3rd Viscount Melbourne of Kilmore in County Cavan, 4th Baronet Lamb of Brocket Hall in Hertfordshire.
On 29th January 1853 Frederick Lamb 3rd Viscount Melbourne [aged 70] died without issue. Viscount Melbourne of Kilmore in County Cavan, Baron Beauvale of Beauvale in Nottinghamshire and Baronet Lamb of Brocket Hall in Hertfordshire extinct. Melbourne Hall, Derbyshire [Map] was inherited by his sister Emily Lamb Countess Cowper [aged 65].