The Most Honourable Sir Francis Nathaniel Conyngham, 2nd Marquess of Conyngham KP PC (June 11, 1797–July 17, 1879) was the son of Henry Conyngham, 1st Marquess of Conyngham. The prefix The Most Honourable is a title of quality attached to the names of marquesses in the United Kingdom. ... The Most Illustrious Order of Saint Patrick is an order of chivalry associated with Ireland. ... A privy council is a body that advises the head of state of a nation, especially in a monarchy. ... June 11 is the 162nd day of the year in the Gregorian Calendar (163rd in leap years), with 203 days remaining. ... 1797 was a common year starting on Sunday (see link for calendar). ... July 17 is the 198th day (199th in leap years) of the year in the Gregorian calendar, with 167 days remaining. ... 1879 was a common year starting on Wednesday (see link for calendar). ...

He married Lady Jane Paget, daughter of Henry Paget, 1st Marquess of Anglesey, on 23 April 1824. They had five children: Henry William Paget, 1st Marquess of Anglesey (17 May 1768–29 April 1854) was a British military leader and politician, now chiefly remembered for leading the charge of the heavy cavalry against dErlons column during the Battle of Waterloo. ... April 23 is the 113th day of the year in the Gregorian Calendar (114th in leap years). ... 1824 was a leap year starting on Thursday (see link for calendar). ...

• George Henry Conyngham, 3rd Marquess Conyngham (1825–1882)
• Lady Jane Conyngham (1826–1900), married Francis Spencer, 2nd Baron Churchill of Whichwood and had issue.
• Lady Elizabeth Georgiana Conyngham (d. 1904), married George Finch, 11th Earl of Winchilsea.
• Lady Cecilia Augusta Conyngham (d. 1877), married Sir Theodore Brinckman, 2nd Baronet and had issue.
• Lady Frances Caroline Martha Conyngham (1827–1898), married Gustavus Lambart and had issue.

This is a list of Under-Secretaries of State for Foreign Affairs in the British Foreign Office since 1782. ... Charles Lennox, 5th Duke of Richmond and Lennox (3 August 1791 - 21 October 1860) was an English politician and a prominent Conservative. ... In the United Kingdom, the Postmaster General is a now defunct ministerial position. ... William Wellesley-Pole, 3rd Earl of Mornington (1763–1845) was an Irish politician and an elder brother of the Duke of Wellington. ... Richard Colley Wesley, later Wellesley, 1st Marquess Wellesley (20 June 1760 - 26 September 1842), was the eldest son of Garret Wesley, 1st Earl of Mornington, an Irish peer, and brother of Arthur Wellesley, 1st Duke of Wellington. ... The Lord Chamberlain or Lord Chamberlain of the Household is one of the chief officers of the Royal Household in the United Kingdom, and is to be distinguished from the Lord Great Chamberlain, one of the great offices of state. ...

The title of Marquess Conyngham (pronounced Cunningum)was created in the Peerage of Ireland in 1816. ...