TheKeeper of the King's/Queen's Swans was a late medieval-founded office in theRoyal Household of theSovereign of England, later Great Britain and ultimately theUnited Kingdom. He was earlier called the King's/Queen's Swanmaster. The office existed to performSwan-Upping marking and health-checking carried out usingThames skiffs on many of the non-tidal reaches of theRiver Thames in latter years fromSunbury-on-Thames passingWindsor, Berkshire toHenley on Thames. In 1993 it was replaced by two separate offices:Warden of the Swans andMarker of the Swans.

The keeper's office dates from the 13th century.^[1] He was supported by three swanherdsmen. The principal duties of this official team of four people were to conduct the annualSwan-Upping on much of non-tidal reaches of theRiver Thames including Windsor.^[2]

It was abolished in 1993, when it was replaced by two new offices, theWarden of the Swans and theMarker of the Swans.

This list isincomplete; you can help byadding missing items.(December 2011)

• Sir William ANDREWS of Lathbury, Bucks, 1620s (d.1625)
• Thomas Alexander Roberts, 1807–after 1825^[3][4]
• J. K. Abnett
• Thomas R. Abnett, 1893– (in office 1900^[5])
• Frederick Thomas Turk,MVO, 1923–1963
• Cpt. Frederick John ('John') Turk,MVO, 1963–1993^[6]

• Positions within the British Royal Household
• Culture associated with the River Thames
• Swans

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