Dictionary of National Biography, 1885-1900/Barnewall, Nicholas (1668-1725)
BARNEWALL, NICHOLAS, third Viscount Kingsland (1668–1725), was grandson of the first viscount, and, owing to his father's infirmities, was placed under the guardianship of his brother-in-law, Lord Riverston, who concluded a marriage for him, before he was of age, with Mary, youngest daughter of George, Count Hamilton, by his wife Frances Jennings, afterwards married to the Earl of Tyrconnel. In 1688 he entered King James's Irish army as captain in the Earl of Limerick's dragoons, and for his services in that station was outlawed. After the defeat of the Boyne he was moved to Limerick, and, being in that city at the time of its surrender, was included in the articles, and secured his estates and a reversal of his outlawry. In the first Irish parliament of William III (1692) he took the oath of allegiance, but upon declining to subscribe the declaration according to the English act, as contrary to his conscience, he was obliged to withdraw with the other catholic lords. In February 1703 he joined with many Irish catholics in an unavailing petition against the infraction of the treaty of Limerick, desiring to have the reasons heard by council, which they had to offer against passing the bill for the prevention of the further growth of popery. He died 14 June 1725, and was buried at Luske. An elegy written on his death by ‘R. U.,’ and published at Dublin in a broadsheet in 1725, speaks with high praise of his kind treatment of his tenants.
[Lodge's Irish Peerage, v. 51; Brit. Mus. Cat.]