He was created a Baronet, of Abington in the County of Limerick, in the Baronetage of Ireland in 1776.
He built an impressive residence, Maretimo House, in Blackrock, County Dublin, and began work on his country house Lyons Hill, County Kildare, which was completed by his son.
Another daughter, the Honourable Valentina Letitia Lawless, married Sir Francis Conyngham, Lieutenant Governor of Quebec.
Lord Cloncurry died at Maretimo House, Blackrock, County Dublin, in August 1799, aged 63, and was succeeded in his titles by his only surviving son, Valentine.
Valentine's prolonged imprisonment in the Tower of London on suspicion of treason was thought by many to have hastened his father's death.