The Baronetcy of Conyers of Horden was created in the Baronetage of England on 14 July 1628 for John Conyers of Horden, County Durham. An old name in the county, Horden had been spelt a number of ways, including Hordern and Hordin.
Between 1099 and 1133 the then Bishop of Durham, Ralph Flambard, granted lands at Sockburn, in County Durham and Hutton, in the North Riding of Yorkshire, to a Roger de Conyers. By the end of the 12th century the lands were divided between two branches of the Conyers family. The elder branch resided at Hutton Conyers, which passed to the Mallory family in 1347 after a Conyers daughter married a Mallory. The other branch was well established at Sockburn. Sockburn Hall was the family seat. The last male Conyers at Sockburn died in 1635, and his granddaughter sold the manor of Sockburn.
In the 16th century Richard Conyers of Hornby, a descendant of Sir Christopher Conyers of Sockburn, married the heiress of the Horden estate near Peterlee, County Durham, and Horden Hall became the family seat.
The second Baronet married Elizabeth Langhorne, heiress to an estate at Charlton, Kent and his son, the third Baronet inherited that estate in 1714. The third Baronet had however married the Baldwin heiress to an estate at Great Stoughton, Huntingdonshire, in 1675 and moved the family seat there.
After the death of the fourth Baronet without a male heir, the Horden estate was sold and the Charlton estate passed by entail out of the immediate family. The Baronetcy passed to his cousin, Ralph Conyers of Chester le Street, who was a great grandson of the first Baronet. He married Jane Blakiston (d.1774) on 11 June 1719 at Durham Cathedral - Jane being a scion of the "opulent House of Gibside", near Rowlands Gill. This alliance of the family with the Gibside - Bowes' further "elevated their position and grandeur". The sons of Sir Ralph and Lady Conyers succeeded as the sixth and seventh Baronets, their grandson George as eighth Baronet who upon his death, left the Baronetcy to be inherited by Thomas, their third son; Sir Thomas was the ninth and last Baronet.