Question: Lieutenant-Admiral Michiel de Ruyter virtually controlled the seas around the south coast of England after a battle that took place in what year ?
Context: The Treaty of Breda was signed at the Dutch city of Breda, 31 July (Gregorian calendar), 1667, by England, the United Provinces (Netherlands), France, and Denmark–Norway.  It brought a hasty end to the Second Anglo-Dutch War (1665–1667) in favour of the Dutch, as Louis XIV's forces began invading the Spanish Netherlands as part of the War of Devolution, but left many territorial disputes unresolved.  It was thus a typical quick "uti possidetis" treaty.  In the latter stages of the war, the Dutch had prevailed.  Lieutenant-Admiral Michiel de Ruyter virtually controlled the seas around the south coast of England, following his successful Raid on the Medway, and his presence encouraged English commissioners to sue for peace quickly.  Negotiations, which had been long protracted, and had actually begun in Breda before the raid, took only ten days to conclude after resumption of talks. The Battle of Plymouth was a naval battle in the First Anglo-Dutch War.  It took place on 16 August 1652 (26 August 1652 (Gregorian calendar)) and was a short battle, but had the unexpected outcome of a Dutch victory over England.  General-at-Sea George Ayscue of the Commonwealth of England attacked an outward bound convoy of the Dutch Republic commanded by Vice-Commodore Michiel de Ruyter.  The two commanders had been personal friends before the war. The Battle of Nyborg was a battle fought between Sweden and the combined forces of Denmark, Dutch naval forces under Michiel de Ruyter, troops of Brandenburg-Prussia, and Polish–Lithuanian Commonwealth forces under Stefan Czarniecki.  The battle was engaged on 14 November 1659 at Nyborg on the Danish island of Funen.  Nyborg was the final major conflict of the Dano-Swedish War of 1658 to 1660. Michiel de Ruyter (] ) is a 2015 Dutch film about the 17th-century admiral Michiel de Ruyter directed by Roel Reiné.  The film had its world premiere in the Nederlands Scheepvaartmuseum in Amsterdam on 26 January 2015 and has been released in cinemas in the Netherlands on 29 January 2015.  On the English promotional website, the film has the title Admiral. HNLMS "De Ruyter (Dutch Zr.  Ms. "De Ruyter) is the third "De Zeven Provinciën"-class <a href=""> frigate of the Royal Netherlands Navy.  She was laid down in 2000, launched in 2002, and commissioned in 2004.  The frigate is named after the famous Dutch admiral Michiel de Ruyter (1607–1676). The naval St James' Day Battle (also known as the St James' Day Fight), the Battle of the North Foreland and the Battle of Orfordness) took place on 25 July 1666 — St James' day in the Julian calendar then in use in England (4 August 1666 in the Gregorian calendar), during the Second Anglo-Dutch War and was fought between fleets of England, commanded jointly by Prince Rupert of the Rhine and George Monck, 1st Duke of Albemarle, and the United Provinces commanded by Lieutenant-Admiral Michiel de Ruyter.  In the Netherlands, the battle is known as the "Two Days' Battle". The Raid on the Medway during the Second Anglo-Dutch War in June 1667, sometimes called the Battle of the Medway, Raid on Chatham or the Battle of Chatham, was a successful and daring attack conducted by the Dutch navy deep upriver targeting the largest English naval battleships at a time when most were virtually unmanned and unarmed, laid up due to lack of funding in the fleet anchorages off Chatham Dockyard and Gillingham in the county of Kent.  At the time, the fortress of Upnor Castle and a barrier chain called the "Gillingham Line" were supposed to protect the mothballed naval ships anchored off Chatham, the main English naval base in southeastern Stuart England. Gerard Brandt (25 July 1626, Amsterdam – 12 October 1685, Amsterdam) was a Dutch preacher, playwright, poet, church historian, biographer and naval historian.  A well-known writer in his own time, his works include a "Life of Michiel de Ruyter" (1687, "Het Leven en bedryf van den Heere Michiel de Ruiter" - an important source on the admiral's life) and a "Historie der vermaerde zee- en koopstadt Enkhuisen" (1666, "Geschiedenis van Enkhuizen" - still an important source for that city's early history). The naval Battle of Augusta (also known as the Battle of Agosta) took place on 22 April 1676 during the Franco-Dutch War and was fought between a French fleet of 29 man-of-war, five frigates and eight fireships under Abraham Duquesne and a Dutch-Spanish fleet of 27 (17 Dutch, 10 Spanish) plus five fireships with Dutch Lieutenant-Admiral-General Michiel de Ruyter in command.  The battle was a short but intense affair and ended abruptly when Duquesne, after hearing that De Ruyter had been mortally wounded, retreated.  Neither side lost a ship, though there were many dead and wounded, especially among the Dutch. The naval Battle of Stromboli took place on 8 January 1676 during the Franco-Dutch War between a French fleet of 20 ships under Abraham Duquesne and a combined fleet of 19 Dutch and one Spanish ship under Lieutenant-Admiral-General Michiel de Ruyter that lasted eight hours and ended inconclusively.  The fleets fought again at the Battle of Augusta.
Answer: 1667