There have been three baronetcies created for members of the Sedley ( otherwise Sidley) family of Kent, all in the

Baronetage of England Baronets are a rank in the British aristocracy. The current Baronetage of the United Kingdom has replaced the earlier but existing Baronetages of England, Nova Scotia, Ireland, and Great Britain. Baronetage of England (1611–1705) King James I ...

. All three creations are extinct. All the baronets descend from the 15th century family of

Aylesford Aylesford is a village and civil parish on the River Medway in Kent, England, northwest of Maidstone. Originally a small riverside settlement, the old village comprises around 60 houses, many of which were formerly shops. Two pubs, a village s ...

and Scadbury,

Southfleet Southfleet is a small village and Civil parishes in England, civil parish in the borough of Dartford in Kent, England. The village is located three miles southwest of Gravesend, Kent, Gravesend, while the parish includes within its boundaries the ...

and from William Sedley of Southfleet who was

High Sheriff of Kent The high sheriff is the oldest secular office under the Crown (prior to 1974 the office previously known as sheriff)."Sheriffs appointed for a county or Greater London shall be known as high sheriffs, and any reference in any enactment or instrum ...

in 1546. The Baronetcy of Sedley of Aylesford in the County of Kent, was created in the Baronetage of England on 29 June 1611 for William Sedley of The Friars, Aylesford. He was high sheriff of the county in 1589. His son, the second Baronet, was high sheriff in 1621. He was succeeded in turn by his three sons, the third of whom, the fifth Baronet, was a politician, wit and dramatist. His only legitimate child was

Catherine Sedley, Countess of Dorchester Catherine Sedley, Countess of Dorchester, Countess of Portmore (21 December 1657 – 26 October 1717), daughter of Sir Charles Sedley, 5th Baronet, was the mistress of King James II of England both before and after he came to the throne. Catheri ...

, mistress of James II. The title became extinct on his death in 1701.George Edward Cokayne ''Complete Baronetage Volume 1'' 1900 (1611 creation)
/ref> The Baronetcy Sedley of Great Chart in the County of Kent, was created in the Baronetage of England on 24 September 1621 for Isaack Sedley, a grandson of the 1st Baronet of Aylesford by his third son Nicholas. He was high sheriff of Kent in 1626. The title became extinct on the death of the eighth Baronet in circa 1770.George Edward Cokayne ''Complete Baronetage Volume 1'' 1900 (1621 creation)
/ref> The Baronetcy Sedley of Southfleet in the County of Kent, was created in the Baronetage of England on 10 July 1702 for Charles Sedley, the grandson of the fifth Baronet of Aylesford by an illegitimate son Charles. The second Baronet sat as

Member of Parliament A member of parliament (MP) is the representative in parliament of the people who live in their electoral district. In many countries with bicameral parliaments, this term refers only to members of the lower house since upper house members of ...

for

Nottingham Nottingham ( , East Midlands English, locally ) is a city status in the United Kingdom, city and Unitary authorities of England, unitary authority area in Nottinghamshire, East Midlands, England. It is located north-west of London, south-east ...

. The title became extinct on his death in 1778.

Sedley baronets, of Ailesford (1611)

*Sir William Sedley, 1st Baronet (–1618) *Sir John Sedley, 2nd Baronet (–1638) *Sir Henry Sedley, 3rd Baronet (–1641) *Sir William Sedley, 4th Baronet (died 1656) *

Sir Charles Sedley, 5th Baronet Sir Charles Sedley, 5th Baronet (March 1639 – 20 August 1701), was an English noble, dramatist and politician. He was principally remembered for his wit and profligacy.. Life He was the son of Sir John Sedley, 2nd Baronet, of Aylesford in Ke ...

(1639–1701)

Sedley baronets, of Great Chart (1621)

*Sir Isaack Sedley, 1st Baronet (died 1627) *Sir John Sedley, 2nd Baronet (–1673) *Sir Isaac Sedley, 3rd Baronet (died by 1695) *Sir Charles Sedley, 4th Baronet (died 1702) *Sir John Sedley, 5th Baronet (c. 1710) *Sir George Sedley, 6th Baronet (died by 1722) *Sir George Sedley, 7th Baronet (died 1737) *Sir Charles Sedley, 8th Baronet (died c. 1770)

Sedley baronets, of Southfleet (1702)

*Sir Charles Sedley, 1st Baronet (–1730) *

Sir Charles Sedley, 2nd Baronet Sir Charles Sedley, 2nd Baronet (c. 1721 – 23 August 1778), was a British politician who sat in the House of Commons between 1747 and 1778. Sedley was the eldest son of Sir Charles Sedley, 1st Baronet, son of Sir Charles Sedley, illegitimate s ...

(c. 1721–1778)

References

''The History and Topographical Survey of the County of Kent'' Vol 2 (1797) Edward Halsted pp421-40 from British History on line. Scadbury and Southfleet
*

{{s-end Extinct baronetcies in the Baronetage of England 1611 establishments in England