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Upnor Castle

Upnor Castle and the founding of the dockyard

Upnor's history is closely linked with that of the British Navy. DuringPhoto of Upnor Castle the 16th century, the river Medway began to be used as anchorage for the fleet or at least that part of it which was out of commission. This concentration of laid-up warships led to the building of facilities for them, starting in 1547 with the hire of a storehouse in Gillingham. More buildings followed. Land was obtained for making a mast dock and before long the new Chatham dockyard had joined Deptford and Woolwich in the business of building ships for the Crown.

By 1564, most of the British fleet was moored in the Medway. The ships rode at anchor without sails or rigging, completely at the mercy of any bold enemy attack up the river. Henry VIII had built five riverside blockhouses to guard the Thames but, apart from the fort at Sheerness, the Medway remained unprotected. It was this situation that the building of Upnor Castle was designed to remedy in 1559.

The original fort consisted of an angled gun platform and a rectangular residential block built for the gunners over the river bank. The whole structure was flanked by two towers for further guns and small arms. Between 1599 and 1601 these towers were rebuilt and a gatehouse and courtyard added to give the castle something like its appearance today.

In 1667 the castle saw action when a Dutch squadron under the command of Michael de Ruyter sailed up the Medway and stole away the English flagship, the Royal Charles. Although fire from Upnor and other batteries prevented the Dutch ships from reaching the dockyard, this was nevertheless a humiliating defeat for the English, "a dishonour never to be wiped off", according to the writer John Evelyn.

Shortly after this, Upnor Castle was converted into a gunpowder store and magazine, becoming the largest and most important powder store in the country. Today, the building still displays many of the alterations made to ensure the safe storage of gunpowder, including a separate barrack block for the garrison.

The castle continued to serve as a magazine throughout the 19th century and was finally transferred to the Ministry of Works in 1961 to be maintained as a national monument.

 

For more information contact Medway Archives and Local Studies by telephone: 01634 332714 or by email: malsc@medway.gov.uk

Write to: Medway Archives and Local Studies, Medway Council, Gun Wharf, Dock Road, Chatham, Kent ME4 4TR

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