John Morgan was a Welsh

Welsh people

The Welsh people are an ethnic group and nation associated with Wales and the Welsh language.John Davies argues that the origin of the "Welsh nation" can be traced to the late 4th and early 5th centuries, following the Roman departure from Britain, although Brythonic Celtic languages seem to have...

 politician of the early 18th century.

Morgan was the youngest son of William Morgan

William Morgan (of Machen and Tredegar)

William Morgan was a Welsh politician of the 17th century.Morgan was the eldest son and heir of Thomas Morgan , of Machen, and his second wife, Elizabeth Windham....

 and his wife (and cousin) Blanche. When his elder brother Thomas Morgan

Thomas Morgan (of Dderw)

Thomas Morgan, JP was a Welsh Whig politician of the 17th century.The eldest son of William Morgan and his first wife Blanche, Morgan inherited his father's estate upon the latter's death in 1680...

 died without surviving children in 1700, he inherited the family estates, the two middle brothers having predeceased him. Morgan, a strong Whig

British Whig Party

The Whigs were a party in the Parliament of England, Parliament of Great Britain, and Parliament of the United Kingdom, who contested power with the rival Tories from the 1680s to the 1850s. The Whigs' origin lay in constitutional monarchism and opposition to absolute rule...

, entered the House of Commons

British House of Commons

The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

 as Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for Monmouthshire

Monmouthshire (UK Parliament constituency)

Monmouthshire was a county constituency of the House of Commons of Parliament of England from 1536 until 1707, of the Parliament of Great Britain from 1707 to 1801, and of the Parliament of the United Kingdom from 1801 to 1885...

 in 1701, replacing his brother, and represented it until his death. He was created custos rotulorum of the county

Custos Rotulorum of Monmouthshire

This is a list of people who have served as Custos Rotulorum of Monmouthshire.* Richard Morgan bef. 1544–1556* Thomas Somerset bef. 1558 – aft. 1562* Rowland Morgan bef. 1564 – aft. 1577* William Herbert bef. 1584–1593...

 the same year, in succession to his brother.

In 1715, Morgan inherited the manor of Gwynllwg

Gwynllwg

Gwynllŵg was a kingdom of mediæval Wales and later a Norman lordship and then a cantref.-Location:It was named after Gwynllyw, its 5th century or 6th century ruler and consisted of the coastal plain stretching between the Rhymney and Usk rivers, together with the hills to the north...

 from his uncle, John Morgan and obtained the lord lieutenancy of the county

Lord Lieutenant of Monmouthshire

This is a list of people who served as Lord Lieutenant of Monmouthshire. Before the English Civil War, the lieutenancy of Monmouthshire was held by the Lord Lieutenant of Wales, except for the period from 1602 to 1629, when it formed a separate lieutenancy in conjunction with Glamorgan...

 and also of Brecknockshire

Lord Lieutenant of Brecknockshire

This is a list of people who served as Lord Lieutenant of Brecknockshire. After 1723, all Lord Lieutenants were also Custos Rotulorum of Brecknockshire...

.

By his wife Martha Vaughan, Morgan had two sons, William Morgan

William Morgan (of Tredegar, elder)

Sir William Morgan, KB was a Welsh Whig politician of the early 18th century.Morgan was the eldest son of John Morgan, a Whig of great political influence in Brecknockshire and Monmouthshire...

, upon whom he settled the Tredegar Estate, and Thomas Morgan

Thomas Morgan (judge advocate)

Thomas Morgan was a Welsh politician and lawyer of the 18th century.He was the younger son of John Morgan and his wife Martha. Thomas received the estate of Rhiwpera upon his father's death in 1720. He entered the House of Commons as Member of Parliament for Brecon in 1723, which he represented...

, upon whom he settled Rhiwpera. He died in 1720, and was buried on 19 March 1720 at Machen

Machen

Machen is a large village 3 miles east of Caerphilly, south Wales, situated in the Caerphilly borough within the historic boundaries of Monmouthshire. It neighbours Bedwas and Trethomas, and forms a council ward in conjunction with those communities. It lies on the Rhymney River.-Mynydd...

.