With his wife Hon. Letitia
Coote, Molesworth had eleven sons and six daughters: • John Molesworth, 2nd Viscount Molesworth of Swords (4 December 1679 – 17 or 18 February 1725/26). Ambassador at the Court of Tuscany and Sardinia in 1710 and 1720. He married Mary, daughter and co-heir of Thomas Middleton Esq. of Stansted Mountfitchet, Essex, by whom he had a posthumous daughter Mary, who married Frederick Gore Esq., M.P. • Field Marshal
Richard Molesworth, 3rd Viscount Molesworth of Swords (1680/1 – 12 October 1758).
Aide-de-Camp to the
John Churchill, 1st Duke of Marlborough at the Battle of Ramilles, where he saved the Duke's life. He later became a General and rose to Fieldmarshal. : He married firstly Jane Lucas and had three daughters: :* The Hon. Mary (wife of
Robert Rochfort, 1st Earl of Belvedere). :* The Hon. Letitia (wife of Lt. Colonel James Molesworth). :* The Hon. Amelia (died unm 30 Jan 1758) : Richard married secondly Mary, daughter of Rev. William Usher,
Archdeacon of Clonfert and had a son and six daughters: :* The Hon. Richard Nassau Molesworth (4th Viscount) :* The Hon. Henrietta (wife of Rt. Hon
John Staples of
Lissan House, County Londonderry. Their daughter Charlotte married William Lenox-Conyngham of
Springhill, County Londonderry, father of
Sir William Fitzwilliam Lenox-Conyngham. Another daughter Frances married
Richard Ponsonby,
Bishop of Derry and Raphoe). :* The Hon. Louisa (wife of
William Ponsonby, 1st Baron Ponsonby, then
William Fitzwilliam, 4th Earl Fitzwilliam) :* The Hon. Charlotte :* The Hon. Elizabeth (wife of James Stewart Esq. of Killymoon) :* The Hon. Mary and, who died with her mother in the fire at their London house, 6 May 1763. :* The Hon. Melosina, who died with her mother in the fire at their London house, 6 May 1763. • The Hon. Robert Molesworth I (living in 1688) • Captain The Hon. William Molesworth (born 1688, died 6 March 1770),
MP for Philipstown. His son Robert became 6th Viscount Molesworth. Married Anne, eldest daughter of Robert Adair Esq. of Holybrook, County Wicklow. • Major The Hon. Edward Molesworth (born c.1689, died 29 November 1768). Married firstly, in Sept 1718 Catherine Middleton, daughter of Thomas Middleton, with whom he had a son Robert. Edward married as his second wife Mary Renouard and had a son John (d.1791). John's son was the
Rev. John Molesworth (d.1877), whose sons included
Sir Guildford Lindsey Molesworth (d. 1925) and solicitor John Molesworth (d.1886), the grandfather of Margaret Patricia Molesworth (1904–1985) who is the grandmother of
Sophie, Duchess of Edinburgh. Another son was the Rev. Rennell Molesworth (died 1906), grandfather of
Lady Mogg née Margaret Molesworth (1914-2018). • The Hon. Coote Molesworth I (born c.1689) • The Hon. Robert Molesworth II (born c.1692) • The Hon. Walter Molesworth (born after 1692, between Robert II and Letitia II, died 1773). He left children. • The Hon. Coote Molesworth II M.D. (born 1698, died 9 November 1782) • The Hon.
Bysse Molesworth (born 1700, died 1779). Married 7 Dec 1731, Elizabeth Cole, sister of
John Cole, 1st Baron Mountflorence and widow of Edward Archdall Esq. of Castle Archdall, County Fermanagh. • The Hon. Robert Molesworth III (born c.1702, died aged c.10 of smallpox) • The Hon. Juliana Molesworth (died unmarried in 1759) • The Hon. Margaret Molesworth (1677–1684) • The Hon.
Mary Molesworth (1682–1716), a celebrated beauty and poet. Married George Monk Esq. of Dublin. • The Hon. Letitia Molesworth I (living in 1688) • The Hon. Charlotte Amelia Molesworth (born c.1691). Married Capt. William Tichborne, younger son of Robert Molesworth's half brother
Henry Tichborne, 1st Baron Ferrard making him her cousin on the Bysse side • The Hon. Letitia Molesworth II (born 7 or 8 March 1697). Married Edward Bolton
Esquire of Brazeel, County Dublin. In 1760, their son Robert Bolton (c.1727 - c.1798) translated the
charter and
statutes of
Trinity College, Dublin from which he had graduated with an
A.B. Robert also appears to have had a natural son: • John Phillips of Swords (1711–1779), a surgeon,
County Dublin, married to Henrietta Eccleston (b. 1715), herself a talented painter, daughter of John Eccleston of Termonfekin, and his wife Elizabeth. John was the son of William Eccleston of Drumshallon,
High Sheriff of Louth (1656–1705) and his wife, Rose Brabazon (1663-1686), daughter of
Captain James Brabazon. They had a son and two daughters: •
Brevet-Major Molesworth Phillips of Swords (1755–1832), a marine officer and adventurer who sailed to
Pacific Ocean with
Captain Cook. He married
Susannah Elizabeth Burney (1755–1800), an English letter and journal writer, daughter of
Charles Burney, a music historian by his first wife,
Esther Sleepe. Molesworth thus became
brother-in-law of
Charles Burney, a clergyman and chaplain to
George III and
Fanny Burney, Madame d'Arblay, an English satirical novelist, diarist and playwright. He inherited entailed land in Swords, and from his maternal great-grandfather, William Eccleston (d. 1720), and his uncle, William Eccleston (d. 1795), he inherited the estate of Belcotton and the townland of
Termonfeckin, County Louth. The couple left issue. • Magdalene Dorothea (1750-1824), married in June 1780 to George Kiernan of Blackhall, Dublin. They had issue. • Henrietta Maria Phillips (d. 15 Dec 1792), married on 26 August 1766 to Rev Walter
Shirley, Rector of Loughrea, co. Galway ==Death and succession==