Show ContentsSidley History, Family Crest & Coats of Arms

Early Origins of the Sidley family

The surname Sidley was first found in Kent where the family had three distinct branches: Sedley of Aylesford; Sedley of Great Chart; and Sedley of Southfleet. The oldest appears to be William Sedley of Southfleet who was High Sheriff of Kent in 1546. Aylesford dates back to the Britons when it was called Saissenaighobail, in commemoration of their having here defeated the Saxons; and by the latter, after their settlement in the country, Eaglesford, of which the present name is a corruption. 1

In 1240, Ralph Frisburn, on his return from the Holy Land, founded a Carmelite monastery, under the patronage of Richard, Lord Grey, of Codnor: many parts of the building are entire, though the greater portion of the site is occupied by a mansion erected by Sir William Sedley, and now the residence of the Earl of Aylesford.

Early History of the Sidley family

This web page shows only a small excerpt of our Sidley research. Another 149 words (11 lines of text) covering the years 1588, 1597, 1600, 1618, 1621, 1623, 1627, 1638, 1639, 1641, 1656, 1657, 1665, 1673, 1692, 1695, 1701, 1702, 1710, 1717, 1722, 1730 and 1737 are included under the topic Early Sidley History in all our PDF Extended History products and printed products wherever possible.

Sidley Spelling Variations

Spelling variations of this family name include: Sidley, Sidlie, Siddley, Siddlie, Sydley, Sydlie, Syddlie, Syddley, Sedley, Sedlie and many more.

Early Notables of the Sidley family

Distinguished members of the family include William Sedley (c.1588-1618), 1st Baronet of Aylesford in Kent; John Sedley (c. 1597-1638), 2nd Baronet; Henry Sedley (c. 1623-1641), 3rd Baronet; William Sedley, 4th Baronet (died 1656); Sir Charles Sedley, 5th Baronet (1639-1701), an English wit, dramatist and politician, Speaker of the House of Commons; and his daughter, Catherine Sedley, Countess of Dorchester, Countess of Portmore (1657-1717), known for her wittiness and sharp tongue; Charles Sedley (c. 1695-1730), 1st...
Another 74 words (5 lines of text) are included under the topic Early Sidley Notables in all our PDF Extended History products and printed products wherever possible.


United States Sidley migration to the United States +

Some of the first settlers of this family name were:

Sidley Settlers in United States in the 17th Century
  • Tho Sidley, who arrived in Virginia in 1643 2
Sidley Settlers in United States in the 19th Century
  • John Sidley, who arrived in Philadelphia in 1851

Australia Sidley migration to Australia +

Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:

Sidley Settlers in Australia in the 19th Century
  • John Sidley, English convict from Chester, who was transported aboard the "Adamant" on March 16, 1821, settling in New South Wales, Australia 3
  • C. Sidley, who arrived in Adelaide, Australia aboard the ship "Mary White" in 1844 4

Contemporary Notables of the name Sidley (post 1700) +

  • Samuel Sidley (1829-1896), English portrait-painter, born in Yorkshire

HMS Hood
  • Mr. Robert B P Sidley (b. 1900), English Stoker Petty Officer serving for the Royal Navy from Upton-on-Severn, Worchester, England, who sailed into battle and died in the HMS Hood sinking 5
HMS Royal Oak
  • William F. Sidley, British Seaman with the Royal Navy aboard the HMS Royal Oak (1939) when she was torpedoed by U-47 and sunk; he survived the sinking 6


The Sidley Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Deo patria tibi
Motto Translation: For God, country, and yourself.


  1. Lewis, Samuel, A Topographical Dictionary of England. Institute of Historical Research, 1848, Print.
  2. Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)
  3. State Library of Queensland. (Retrieved 2016, October 27) Adamant voyage to New South Wales, Australia in 1821 with 144 passengers. Retrieved from http://www.convictrecords.com.au/ships/adamant/1821
  4. State Records of South Australia. (Retrieved 2010, November 5) MARY WHITE, barque, 1844. Retrieved from http://www.slsa.sa.gov.au/BSA/1844MaryWhite.gif
  5. H.M.S. Hood Association-Battle Cruiser Hood: Crew Information - H.M.S. Hood Rolls of Honour, Men Lost in the Sinking of H.M.S. Hood, 24th May 1941. (Retrieved 2016, July 15) . Retrieved from http://www.hmshood.com/crew/memorial/roh_24may41.htm
  6. Ships hit by U-boats crew list HMS Royal Oak (08) - (Retrieved 2018 February, 9th) - retrieved from https://uboat.net/allies/merchants/crews/ship68.html


Houseofnames.com on Facebook