William 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 mid-18th century.

He was the eldest son of Sir 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...

 and his wife Lady Rachel Cavendish, daughter of William Cavendish, 2nd Duke of Devonshire

William Cavendish, 2nd Duke of Devonshire

William Cavendish, 2nd Duke of Devonshire KG, PC was a British nobleman and politician, the eldest son of William Cavendish, 1st Duke of Devonshire and Lady Mary Butler. A prominent Whig, he was sworn of the Privy Council in 1707, and served as Lord President of the Council from 1716 to 1717 and...

. He inherited the Tredegar Estate upon his father's death in 1725. Morgan matriculated at Christ Church, Oxford

Christ Church, Oxford

Christ Church or house of Christ, and thus sometimes known as The House), is one of the largest constituent colleges of the University of Oxford in England...

 on 9 June 1743. He 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...

 in 1747 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...

, and was Bailiff

Bailiff

A bailiff is a governor or custodian ; a legal officer to whom some degree of authority, care or jurisdiction is committed...

 of Brecon

Brecon

Brecon is a long-established market town and community in southern Powys, Mid Wales, with a population of 7,901. It was the county town of the historic county of Brecknockshire; although its role as such was eclipsed with the formation of Powys, it remains an important local centre...

 in 1749. He continued to represent Monmouthshire until his death in 1763.

William died unmarried, and as all his siblings had predeceased him, Tredegar was inherited by his uncle 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...

. This led to a legal battle between Thomas and Lady Rachel over control of the estate.