Trinity House

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Trinity House, Deptford

Trinity House is a charity, a lighthouse authority and a pilotage authority, and also the building which the corporation has its headquarters.

The organisation is known in full as the Corporation of Trinity House of Deptford Strond, though in more formal terms it is 'The Master Wardens and Assistants of the Guild Fraternity or Brotherhood of the most glorious and undivided Trinity and of St Clement in the Parish of Deptford Strond in the County of Kent'. It is a private corporation governed under a Royal Charter and it has three core functions:

  • Trinity House is the official General Lighthouse Authority for England, Wales, the Channel Islands and Gibraltar, responsible for the provision and maintenance of navigational aids, such as lighthouses, lightvessels, buoys, and maritime radio/satellite communication systems.
  • It is also an official deep sea pilotage authority, providing expert navigators for ships trading in Northern European waters.
  • It is also a maritime charity, dispersing funds for the welfare of retired seamen, the training of young cadets and the promotion of safety at sea.

In its charitable function, for the financial year ending in March 2013 Trinity House spent approximately £6.5 million[1]

Funding for the work of the lighthouse service comes from "light dues" levied on commercial vessels calling at ports in the British Isles, based on the net registered tonnage of the vessel. The rate is set by the Department of Transport, and annually reviewed.[2] Funding for the maritime charity is generated separately.

After the corporation was founded in 1514, the first master was Thomas Spert (later Sir), sailing master of King Henry VIII's flagship Mary Rose and of Henry Grace à Dieu.

The Corporation

Master of the Corporation

A meeting at Trinity House circa 1808

The office of Master of the Corporation is now an honorary title, and held by the Princess Royal. Previous Masters of Trinity House have included Sir Thomas Spert, master of the warship Henry Grace a Dieu under Henry VIII; the diarist Samuel Pepys; Admiral William Penn (father of William Penn, founder of Pennsylvania); William Pitt the Younger; and the Duke of Wellington.

Winston Churchill gained his status as an Elder Brother of Trinity House as a result of his position as First Lord of the Admiralty before and during the First World War. Often, especially on naval-related forays during the Second World War, Churchill was seen in Trinity House cap or uniform. Later Churchill also had a Trinity House vessel named after him; THV Winston Churchill.[3]


Elder Brethren during Trafalgar 200

Trinity House is ruled by a court of thirty-one Elder Brethren, presided over by a Master. These are appointed from 300 Younger Brethren who act as advisers and perform other duties as needed. The Younger Brethren are appointed from lay people with maritime experience, mainly naval officers and ships' masters, but also harbourmasters, pilots, yachtsmen, and anyone with useful experience.[4]

Trinity House

The headquarters of the corporation is the present Trinity House, which was designed by architect Samuel Wyatt and built in 1796. It has a suite of five state rooms with views over Trinity Square, The Tower of London and the River Thames.


The Corporation came into being in 1514 as a result of a petition to King Henry VIII put forward on 19 March 1513 by a guild of Deptford-based mariners. They were troubled by the poor conduct of unregulated pilots on the Thames and asked the king for licence to regulate pilotage.

In response, the King issued a Royal charter creating a corporation under the name "The Master, Wardens, and Assistants of the Guild, Fraternity, or Brotherhood of the most glorious and undivided Trinity, and of St Clement in the Parish of Deptford-Strond in the County of Kent."[5] The first Master was Thomas Spert (later Sir), sailing master of King Henry’s flagship Mary Rose and the Henry Grace à Dieu.

The name of the guild was inspired by that of Trinity House in Kingston upon Hull, a guild established in that town since the fourteenth century or earlier which regulated pilots in the Humber and beyond. The second part of the dedication was to St Clement, the patron saint of sailors.

As John Whormby, a Clerk to the Corporation, wrote in 1746, their general business was:

to improve the art and science of mariners; to examine into the qualifications, and regulate the conduct of those who take upon them the charge of conducting ships; to preserve good order, and (when desired) to compose differences in marine affairs, and, in general, to consult the conservation, good estate, wholesome government, maintenance and increase of navigation and sea-faring men; and to relieve decayed seamen and their relatives.[6]

In 1566, under Queen Elizabeth I, the Seamarks Act enabled Trinity House:

at their wills and pleasures, and at their costs, [to] make, erect, and set up such, and so many beacons, marks, and signs for the sea… whereby the dangers may be avoided and escaped, and ships the better come into their ports without peril.

With the increasing number of ships lost along the Newcastle to London coal route, Trinity House established the Lowestoft Lighthouse in 1609, a pair of wooden towers with candle illuminants. Until the late 18th century, candle, coal, or wood fires were used as lighthouse illuminants, improved in 1782 with the circular-wick oil-burning Argand lamp, the first ‘catoptric’ mirrored reflector in 1777, and Fresnel’s ‘dioptric’ lens system in 1823. The Nore lightship was established as the world's first floating light in 1732.

In 1803, the Corporation established the Blackwall Depot as a buoy workshop, and six district depots were later established at Harwich, Great Yarmouth, East Cowes, Penzance, Holyhead and Swansea. In December 2002, Trinity House announced that the Great Yarmouth, Penzance and East Cowes depots would close.

In 1836, Trinity House accepted powers to buy out the last private lighthouse owners and began refurbishing and upgrading its lighthouse estate.

During the First World War, the Corporation served a number of functions: it buoyed shipping lanes and naval operations, moved lightvessels, and laid hundreds of buoys. During the Second World War, Trinity House kept sea lanes marked and lit for Allied convoys. The Pilotage Service guided ships to their ports under hazardous conditions; at the time of the Dunkirk evacuation, a number of pilots helped in piloting vessels to and from the beaches. Trinity House laid 73 lighted buoys and two lightvessels to indicate a safe route for the D-Day landings, with Trinity House pilots responsible for all commercial vessels and many of the service vessels. In the month following D-Day, nearly 3,000 vessels were handled by 88 river pilots and nearly 2,000 ships by 115 sea pilots working day and night.

On the night of 29 December 1940, Trinity House was destroyed by the most severe of the air attacks on London; the interiors were completely gutted and many archives and treasures were lost. The restored house was reopened by HM Queen Elizabeth on 21 October 1953.

By the 1960s, Trinity House licensed about 500 pilots, of whom about 350 were in the London District, handling an estimated 60% of the nation’s piloted tonnage. The 1987 Pilotage Act authorized Trinity House to pass its District Pilotage responsibilities to various local harbour authorities, becoming instead a licensing authority for deep sea pilotage.

In 1969, Trinity House initiated the debut of helicopter reliefs to and from offshore lighthouses, succeeding the boat reliefs. These had been susceptible to being delayed by months during inclement weather. Trinity House played a major part in the design of the IALA Maritime Buoyage System, laying the first buoy off Dover, watched over by representatives of 16 nations on 15 April 1977.

The completion of the lighthouse automation programme came with a ceremony held at the North Foreland Lighthouse on 26 November 1998, attended by the last six keepers and Master HRH The Duke of Edinburgh. On 9 June 1989, the last manned lightvessel was towed from the Channel lightvessel station to Harwich.

Today, Trinity House's operational headquarters is in Harwich, supported by depots in Swansea and a flight operations base at St Just in Cornwall. Its operations are also supported by three vessels; the two large tenders THV Patricia and THV Galatea, and the Rapid Intervention Vessel THV Alert. A small secretariat is based at Tower Hill.

As a charitable body, the Corporation has owned a number of properties for benevolent purposes, chief among them the estate at Newington in Surrey (now rebranded as 'Trinity Village') and almshouses at Deptford (Kent), Mile End (Middlesex), and Walmer (Kent); the latter estate was built in 1958 and is in use by the corporation today.

In 2011, HRH Princess Royal succeeded HRH The Duke of Edinburgh as Master. Her Royal Highness was aboard Trinity House Motor Boat No.1 during the Diamond Jubilee procession.

In 2014, the Royal Mint issued a two pound coin commemorating the 500th anniversary of the granting of Trinity House's Royal Charter.[7]

Operational responsibilities and role of the corporation

Trinity House, Harwich

Trinity House has three main functions:

  • It is the General Lighthouse Authority for England, Wales, the Channel Islands and Gibraltar, responsible for a range of general aids to navigation, 'signs of the sea', from lighthouses to radar beacons.
  • It is a charitable organisation dedicated to the safety, welfare and training of mariners.
  • It is a Deep Sea Pilotage Authority, licensing expert navigators to act as deep sea pilots for ships trading in Northern European waters.

The Corporation also inspects buoys provided by local harbour authorities. It no longer provides local pilots for entering ports. It works closely with the Maritime and Coastguard Agency, a government body.



Trinity House's activities as a lighthouse authority are financed from “light dues” levied on commercial shipping calling at ports in the United Kingdom and the Republic of Ireland: the funds from all the British and Irish ports are pooled into a fund managed by the Department for Transport and distributed to the three lighthouse authorities: Trinity House, the Commissioners of Irish Lights and the Northern Lighthouse Board.

Charitable activities are funded from Trinity House's own endowments.


Experimental lighthouse at Trinity Buoy Wharf, used by Michael Faraday
Trinity House Flag on Portland Bill Lighthouse, Dorset

Trinity House maintains 65[8] lighthouses ranging from isolated rock towers like the Eddystone to mainland towers like Southwold Lighthouse. The furthest-flung lighthouse belonging to Trinity House is Cape Pembroke Lighthouse in the Falkland Islands.

All Trinity House lighthouses have been automated since November 1998, when the United Kingdom's last manned lighthouse, North Foreland in Kent, was converted to automatic operation. Lighthouse automation began as long ago as 1910, thanks to an invention of Gustaf Dalén: his sun valve was fitted in a number of lighthouses powered by acetylene gas. The vital component was a black metal rod, which was suspended vertically and connected to the gas supply. As it absorbed the sun's heat, the rod expanded downwards, cutting off the gas during the day.

Automation in the modern context began in the early 1980s, made possible firstly by the construction of lantern-top helipads at remote rock lighthouses, to enable the rapid transfer of technicians to a lighthouse in the event of a breakdown, and secondly, by the development of remote control technology, which enables all lighthouses and lightvessels to be monitored and controlled from the Trinity House Operations and Planning Centre, in Harwich, Essex.


THV Patricia at Harwich
THV Alert entering Harwich Harbour

Trinity House operates three vessels around the coast of Great Britain and the Channel Islands.[9]

  • THV Patricia (1982) is an 262-foot Multi Functional Tender. She carries out maintenance work on navigation aids, towing, wreck location and marking. She has a helicopter-landing pad, a 20-ton main crane and 28 tonne bollard pull and towing winch.
  • THV Alert (2006) is a 129-foot Rapid Intervention Vessel, able to respond rapidly to maritime incidents on the south-east coast. She is capable of buoy handling, wreck marking and towing. Fitted with multibeam and side scan hydrographic surveying capability and DP1 dynamic positioning, Alert can be utilised as a research platform with a large working deck.
  • THV Galatea (2007) is an 276-foot Multi Functional Tender with a helicopter-landing pad. Fitted with a range of high specification survey equipment and a 30-ton capacity crane, azimuthing propellers, two 750 kW bow thrusters and DP2 dynamic positioning, Galatea replaced the 1987-built THV Mermaid.


Trinity House operates a number of small boats, mostly functioning as ship's tenders to the vessels in the section above. The historic right of Trinity House to escort the Sovereign when travelling by ship in territorial waters is still exercised on ceremonial occasions. On the River Thames and inland waterways the duty is carried out by the vessel Trinity House No 1 Boat.[10] The name is in practice a designation of any boat assigned to this duty, rather than the name of a specific vessel, and at present a tender of THV Galatea is used for such ceremonial duties.[11] On 8 November 2014, Trinity House entered a float into the annual Lord Mayor's Show in the City of London, consisting of a heavy low-loader lorry, with the Trinity House No 1 Boat mounted on the low-loader trailer as an exhibit.


In addition to the maritime assets, the Corporation of Trinity House also owns two listed estates: one of predominantly residential buildings at Trinity Village in Borough, Surrey;[12] and a working farm at Goxhill, Lincolnshire.[13] The rents from these properties form a substantial part of the corporation's income.[14]

Other assets

Amongst other significant assets, Trinity House operates a helicopter capable of landing on lighthouse and ship landing pads. Since May 2011, the aircraft in principal use has been an MD Explorer 902 leased from Police Aviation Services.[15]

Ensign of Trinity House


The Ensign of Trinity House is a British Red Ensign defaced with the shield of the coat of arms (a St George's Cross with a sailing ship in each quarter). The Master and Deputy Master each have their own flags.[16]

See also

Outside links

("Wikimedia Commons" has material
about Trinity House)


  1. Charities we Support - Trinity House
  2. "Funding". Retrieved 28 April 2015. 
  3. "THV Winston Churchill". Ship Spotting. Retrieved 28 April 2015. 
  4. "Quarterdeck" (PDF). McBooks Press. March 2007. pp. 8–9. Retrieved 2007-08-06. 
  5. "Current Royal Charters 1685–1978" (PDF). Trinity House. February 2009. Retrieved 2009-07-12. 
  6. Whormby, John (1746). An Account of the Corporation of Trinity House of Deptford Strond and of Sea Marks in General. Private press. pp. 1–2.
  7. "The Royal Mint announces coins for 2014". Royal Mint. 6 January 2014. Retrieved 13 May 2015. 
  8. "Lighthouse List". Trinity House. Retrieved 28 April 2015. 
  9. "Commercial Services". Trinity House. Retrieved 2008-08-02. 
  10. "HM The Queen's Diamond Jubilee Celebrations". Trinity House. 2012. Retrieved 4 June 2012. 
  11. Trinitity House press release: Queen's Diamond Jubilee.
  12. "Trinity Village". Trinity Village. Retrieved 28 April 2015. /
  13. "Trinity House History". Retrieved 28 April 2015. 
  14. Trinity House. "Annual Report and Accounts for the year ended 31 March 2014" (PDF). p. 43. Retrieved 28 April 2015. 
  15. Robinson, Simon (Winter 2011). "New Helicopter — New Ways of Working". Horizon: pp. 18–19. Retrieved 4 June 2012. 
  16. "Trinity House". World Flag Database & Graham Bartram. Retrieved 28 April 2015. 
Lighthouses of Trinity House

Great Britain:
Anvil PointBamburghBardseyBeachy HeadBerry HeadBishop RockBull PointCaldey IslandCoquetCromerCrow PointDungenessEddystoneFarneFlamboroughFlatholmGodrevyHartland PointHilbre IslandHolyheadHurst PointGuile Point EastHeugh HillLizardLongshipsLongstoneLowestoftLundy NorthLundy SouthLynmouth ForelandMonkstoneMumblesNab TowerNash PointNeedlesNorth ForelandPendeenPeninnisPoint LynasPortland BillRound IslandRoyal SovereignSkerriesSkokholmSmallsSouth BishopSouth StackSouthwoldSt Anthony'sSt BeesSt Tudwal'sSt Anns HeadSt CatherinesStart PointStrumble HeadTater DuTrevose HeadTrwyn DuWhitbyWolf Rock

Channel Islands and Gibraltar:

CasquetsEuropa PointLes HanoisSark