http://www.thepeerage.com/p26388.htm#i263880

William Henry Armstrong was born on 21 June 1774.1 He was the son of Rt. Hon. John Armstrong and Letitia Greene.1 He married Bridget Macdonnell, daughter of Lt.-Col. Charles MacDonnell and Bridget Bayly, on 7 April 1809.1 He died on 21 September 1835 at age 61.1

    He was the Lord of the Manor of Roscrea, County Tipperary, Ireland.1 He refused the Peerage destined for his father.1 He held the office of Member of Parliament (M.P.)1 He voted against the Union of England and Ireland.1 He lived at Mount Heaton, Ballyskennagh, County Offaly, Ireland, which he sold in 1817.1 He retired to the Continent.1 He gained the title of Lord of the Manor of Roscrea [feudal baron].2 He sold his estates in Fermanagh, Limerick, and Tipperary Counties, and in England, (a total of 133,460 acres), in 1834.1

http://landedfamilies.blogspot.co.za/2015/09/182-armstrong-and-heat...

William Henry Armstrong (1774-1835) was born in Toulouse (France). When he came of age, William followed his father into the Irish parliament, where he opposed the union of England and Ireland in 1800, despite being offered the peerage intended for his father in exchange for his support of the measure. William seems to have been an inveterate gambler, and in 1817 he was obliged to sell Mount Heaton to pay his gambling debts. The rest of his estates went the same way in 1834, but from 1817 he chose to live on the Continent (mainly in France but at other times in Italy and Austria), where he produced a large family of eleven children. Most of his children made interesting marriages, often ones which took them back to Ireland, but his heir was John Armstrong (1815-91), who was a Lieutenant in the Austrian army 1831-39 and is said to have declined the honour of being made a Count of the Austrian Empire and Imperial Chamberlain. He spent the 1840s travelling in Australia and South America (which he is said to have crossed on foot). He then returned to Austria and settled at Schloss Weyer, Gmunden with his Austrian wife, Josephine Thérèse Mayr, although after she died in 1856 he perhaps travelled again. At the end of his life he honoured a clause in his grandfather's will and took the additional surname of Heaton. He is said to have spoken thirteen languages fluently, and his facility was evidently passed on to his sons, as the elder (who predeceased him) was working as a translator in London in 1881.

William Henry Armstrong

William Henry Armstrong was the Lord of the Manor of Roscrea, County Tipperary, Ireland. He refused the Peerage destined for his father. He held the office of Member of Parliament (M.P.). He voted against the Union of England and Ireland. He lived at Mount Heaton, Ballyskennagh, County Offaly, Ireland, which he sold in 1817. He retired to the Continent. He gained the title of Lord of the Manor of Roscrea [feudal baron].2 He sold his estates in Fermanagh, Limerick, and Tipperary Counties, and in England, (a total of 133,460 acres), in 1834.