Thomas Jermyn was an English politician who sat in the House of Commons

House of Commons of England

The House of Commons of England was the lower house of the Parliament of England from its development in the 14th century to the union of England and Scotland in 1707, when it was replaced by the House of Commons of Great Britain...

 variously between 1625 and 1644. He supported the Royalist cause in the English Civil War

English Civil War

The English Civil War was a series of armed conflicts and political machinations between Parliamentarians and Royalists...

.

Jermyn was the son of Sir Thomas Jermyn of Rushbrooke

Rushbrooke

Rushbrooke is an urban area on the western side of Cobh on Great Island in Cork Harbour, Ireland. It is in the townland of Ringacoltig .The townland is Ringacoltig, an anglicised version of the original Irish name....

, Suffolk

Suffolk

Suffolk is a non-metropolitan county of historic origin in East Anglia, England. It has borders with Norfolk to the north, Cambridgeshire to the west and Essex to the south. The North Sea lies to the east...

 and his wife Catherine Killigrew daughter of Sir William Killigrew. He was admitted at Emmanuel College, Cambridge

Emmanuel College, Cambridge

Emmanuel College is a constituent college of the University of Cambridge.The college was founded in 1584 by Sir Walter Mildmay on the site of a Dominican friary...

 on 13 June 1622 and was awarded BA in 1626 and MA in 1629. He served Prince Charles as a page during his Spanish journey in 1623.

In 1624 Jermyn was elected 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 Bere Alston

Bere Alston (UK Parliament constituency)

Bere Alston or Beeralston was a parliamentary borough in Devon, which elected two Members of Parliament to the House of Commons from 1584 until 1832, when the constituency was abolished by the Great Reform Act as a rotten borough.-History:...

 and in 1625 was elected MP for Leicester

Leicester (UK Parliament constituency)

Leicester was a parliamentary borough in Leicestershire, which elected two Members of Parliament to the House of Commons from 1295 until 1918, when it was split into three single-member divisions.-History:...

. He was elected MP for Lancaster

Lancaster (UK Parliament constituency)

Lancaster was a constituency of the House of Commons of the Parliament of England then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1867, centred on the historic city of Lancaster in north-west England...

 in 1626 and for Clitheroe

Clitheroe (UK Parliament constituency)

Clitheroe was a parliamentary constituency in Lancashire.The town of Clitheroe was first enfranchised as a parliamentary borough in 1559, returning two Members of Parliament to the House of Commons of England until 1707, then to the House of Commons of Great Britain until 1800, and finally to the...

 in 1628 and sat until 1629 when King Charles decided to rule without parliament for eleven years.

In April 1640, Jermyn was elected 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 Corfe Castle

Corfe Castle (UK Parliament constituency)

Corfe Castle was a parliamentary borough in Dorset, which elected two Members of Parliament to the House of Commons from 1572 until 1832, when it was abolished by the Great Reform Act.-History:...

 together with his brother Henry

Henry Jermyn, 1st Earl of St Albans

Henry Jermyn, 1st Earl of Saint Albans KG was an English politician and courtier. He sat in the in the House of Commons at various times between 1625 and 1643 when he was raised to the peerage as Baron Jermyn...

 in the Short Parliament

Short Parliament

The Short Parliament was a Parliament of England that sat from 13 April to 5 May 1640 during the reign of King Charles I of England, so called because it lasted only three weeks....

, and in November 1640, the brothers were elected MPs for Bury St Edmunds  in the Long Parliament

Long Parliament

The Long Parliament was made on 3 November 1640, following the Bishops' Wars. It received its name from the fact that through an Act of Parliament, it could only be dissolved with the agreement of the members, and those members did not agree to its dissolution until after the English Civil War and...

. Jermyn supported the King and was disabled from sitting in parliament on 14 February 1644.

Jermyn was the father of Thomas

Thomas Jermyn, 2nd Baron Jermyn

Thomas Jermyn, 2nd Baron Jermyn was an English politician who sat in the House of Commons from 1679 to 1684 when he succeeded to the peerage.Jermyn was the son of Thomas Jermyn of Rushbrooke, Suffolk....

 who inherited the title of Baron Jermyn

Baron Jermyn

Baron Jermyn, of St Edmundsbury, was a title in the Peerage of England. It was created in 1643 for Henry Jermyn, with remainder, failing heirs male of his own, to his nephews. In 1660 he was further honoured when he was made Earl of St Albans, with normal remainder to the heirs male of his body...

from Jermyn's brother Henry.