Valentine Lawless, 2nd Baron Cloncurry

Valentine Brown Lawless, 2nd Baron Cloncurry (19 August 1773 – 28 October 1853), was an Irish peer, politician and landowner. In the 1790s he was an emissary in radical and reform circles in London for the Society of United Irishmen, and was twice detained on suspicion of sedition. He gained notoriety for his celebrated lawsuit for adultery against his former friend Sir John Piers, who had seduced Cloncurry's first wife, Elizabeth Georgiana Morgan. He took up residence at Lyons Hill, Ardclough, County Kildare and, commensurate with his status as an Anglo-Irish lord, appeared to reconcile to the Dublin authorities. Lawless served as a Viceregal advisor and eventually gained a British peerage, but it was not as an Ascendancy loyalist. He pressed the case for admitting Catholics to parliament and for ending the universal imposition of Church of Ireland tithes.