Maj Gen Hon William CAULFEILD 2nd Viscount Charlemont 
- Born: 1655, Charlemont Armagh IRL
- Marriage (1): Anne MARGETSON  on 11 Jul 1678
- Died: 21 Jul 1726, Jervis St Dublin IRL aged 71
- Buried: 26 Jul 1726, Armagh Ireland
Maj.-Gen. William Caulfeild, 2nd Viscount Charlemont was born circa 1655. He was the son of William Caulfeild, 1st Viscount Charlemont and Hon. Sarah Moore He married Anne Margetson, daughter of Most Rev. Dr. James Margetson , on 11 July 1678. He died on 21 July 1726 at College Green, Ireland He was buried on 26 July 1726 at Armagh, County Armagh, Ireland
He succeeded to the title of 2nd Viscount Charlemont, co. Armagh [I., 1665] circa April 1671. He succeeded to the title of 6th Lord Caulfeild, Baron of Charlemont, co. Armagh [I., 1620] circa April 1671. He was a Williamite in post-Glorious Revolution Ireland, and was accordingly attainted by King James II's first Parliament in May 1689. He was admitted to King's Inns, Dublin on 9 June 1697. In 1701 he was restored by King William III. He was Colonel of the Lord Charlemont's Regiment of Foot (36th Foot) between 1701 and 1706. He held the office of Governor of Fort Charlemont. He fought in the Capture of Barcelona in 1705. He gained the rank of Brigadier-General in 1705. He gained the rank of Major-General in 1708. He was invested as a Privy Counsellor (P.C.) [Ireland] on 5 June 1726.
Caulfeild was the son of William Caulfeild, 1st Viscount Charlemont of County Armagh, whom he succeeded in 1671.
He was an avid pro-Williamite in the struggle between William of Orange and King James II of England for the British crown, and was consequently attainted by King James' first Parliament in 1689. He was rewarded by William for his loyalty by being put in command of a regiment of infantry and created Custos Rotulorum of Tyrone and Armagh. After Willams's victory the regiment was disbanded but in 1701 he was given command of the new 36th Foot Regiment and promoted in 1704 to the rank of Brigadier-General. He took the regiment to Spain, taking part in the Siege of Barcelona and the attack on Fort Montju´c in 1705. Although contentiously removed from his command of the regiment, he was nevertheless promoted in 1707 to the rank of Major-Generaland made Governor of Counties Armagh and Tyrone.
In May 1726, he was made a Privy Counsellor but died shortly afterwards and was buried in the vault of the family in Armagh. He had married Anne, the only daughter of James Margetson, Archbishop of Armagh and with her had five sons and seven daughters. He was succeeded by James, his eldest surviving son. Another son, Thomas, was an early British Lieutenant-Governor of Nova Scotia. One of Caulfeild's granddaughters, Sophia Frances Anne Caulfeild, was an author, poet and encyclopedist.
William married Anne MARGETSON  [MRIN: 5298] on 11 Jul 1678. (Anne MARGETSON  was born in 1650 and died in 1729.)