Viscount Newcomen

Viscount Newcomen, of Mosstown in the County of Longford, was a title in the Peerage of Ireland.

[2] She had already been made Baroness Newcomen, of Mosstown in the County of Longford, in 1800, also in the Peerage of Ireland.

[3] She was the wife of William Gleadowe-Newcomen, who represented County Longford in both the Irish and British House of Commons.

Her husband was born William Gleadowe, but assumed at the time of their marriage the additional surname of Newcomen.

He sat as Member of Parliament for County Longford in the British House of Commons.