HMS "Royal Oak" was one of five "Revenge"-class battleship s built for the Royal Navy during the First World War.
 Launched in 1914 and completed in 1916, "Royal Oak" first saw combat at the Battle of Jutland as part of the Grand Fleet.
 In peacetime, she served in the Atlantic, Home and Mediterranean fleets, more than once coming under accidental attack.
 The ship drew worldwide attention in 1928 when her senior officers were controversially court-martialled.
 Attempts to modernise "Royal Oak" throughout her 25-year career could not fix her fundamental lack of speed and by the start of the Second World War, she was no longer suited to front-line duty.
HMS "Queen Mary" was the last battlecruiser built by the Royal Navy before World War I.
 The sole member of her class, "Queen Mary" shared many features with the "Lion"-class battlecruiser s, including her eight 13.5 in guns.
 She was completed in 1913 and participated in the Battle of Heligoland Bight as part of the Grand Fleet in 1914.
 Like most of the modern British battlecruisers, she never left the North Sea during the war.
 As part of the 1st Battlecruiser Squadron, she attempted to intercept a German force that bombarded the North Sea coast of England in December 1914, but was unsuccessful.
 She was refitting in early 1915 and missed the Battle of Dogger Bank in January, but participated in the largest fleet action of the war, the Battle of Jutland in mid-1916.
 She was hit twice by the German battlecruiser "Derfflinger" during the early part of the battle and her magazines exploded shortly afterwards, sinking the ship.
The "Prince Consort" class of battleship were four Royal Navy wooden-hulled broadside ironclads: HMS "Royal Oak", HMS "Prince Consort", HMS "Ocean", and HMS "Caledonia".
 They were originally laid down as "Bulwark"-class battleships, but were converted to ironclads.
 "Royal Oak" was Britain's fifth ironclad battleship completed.
William Brown (8 May 1764 – 20 September 1814) was an officer of the British Royal Navy who served in increasingly senior positions during a long period from the American Revolutionary War, including the French Revolutionary War, and until the Napoleonic Wars.
 He began his naval career as a servant to Captain Philemon Pownoll in the frigate HMS Apollo and became a midshipman after two years.
 He then served on HMS Resolution with Lord Robert Manners and came home with him in HMS Andromache.
 He spent the next five years ashore in peacetime.
 After a brief time on HMS Bounty he was taken off by the First lord and moved to HMS Ariel before the Bounty sailed.
 He was then moved to HMS Leander, where he was commissioned by Admiral Peyton in 1788.
 He later captained a series of ships serving in the Mediterranean, the North Sea, the Channel Fleet and then the Mediterranean, again with lord St Vincent.
 He captained HMS Ajax in the Blockade of Brest and the Battle of Cape Finisterre and then at Cadiz at Nelson's personal request.
 After Trafalgar he had a series of shore postings as Dockyard Commissioner at Malta and Shearness before being made Commander in Chief of the Channel Islands and then Jamaica where he died.
Royal Oak is an area in North Yorkshire, England, between Scarborough and Bridlington, next to Filey and Hunmanby.
 The place itself is marked by a public house, also named "The Royal Oak" and a railway crossing on the Yorkshire Coast Line listed as being 43 mi north of Hull Paragon station.
 Two railway junctions that formed a spur to the railway station at Filey Holiday Camp were also located just to the south of the A165 crossing.
 These were known as the Royal Oak Junctions.
The Battle of Tsushima (Russian: Цусимское сражение , "Tsusimskoye srazheniye"), also known as the Battle of Tsushima Strait and the Naval Battle of the Sea of Japan (Japanese: 日本海海戦, "Nihonkai-Kaisen") in Japan, was a major naval battle fought between Russia and Japan during the Russo-Japanese War.
 It was naval history's only decisive sea battle fought by modern steel battleship fleets, and the first naval battle in which wireless telegraphy (radio) played a critically important role.
 It has been characterized as the "dying echo of the old era – for the last time in the history of naval warfare, ships of the line of a beaten fleet surrendered on the high seas".
HMS "Royal Oak" was one of seven "Royal Sovereign"-class pre-dreadnought battleships built for the Royal Navy during the 1890s.
 Upon her completion in 1894, she was initially placed in reserve until mobilised in 1896 for service with the Flying Squadron.
 After returning briefly to reserve, the ship was assigned the following year to the Mediterranean Fleet.
 "Royal Oak" remained there until 1902 when she returned home; after a refit, the ship was assigned to the Home Fleet, where she served as the flagship of the fleet's second-in-command in 1904–05.
 "Royal Oak" was then reduced to reserve until she was taken out of service in 1911.
 The ship was sold for scrap in early 1914.
The Action of 2 May 1707, also known as Beachy Head, was a naval battle of the War of the Spanish Succession in which a French squadron under Claude de Forbin intercepted a large British convoy escorted by three ships of the line, under Commodore Baron Wylde.
 The action began when three French ships, the "Grifon", "Blackoal" and "Dauphine", grappled HMS "Hampton Court" , killing her captain, George Clements, and taking her.
 Claude Forbin's 60-gun "Mars" next attacked HMS "Grafton" and, when joined by the French ships "Blackoal" and "Fidèle", killed the Captain Edward Acton, and took her too.
 The convoy was scattered and the last British escort, HMS "Royal Oak" , badly hit and with 12 feet of water in her wells, managed to escape by running ashore near Dungeness, from where she was carried the next day into the Downs.
The Battle of Jutland (German: "Skagerrakschlacht" , the Battle of Skagerrak) was a naval battle fought by the British Royal Navy's Grand Fleet under Admiral Sir John Jellicoe, against the Imperial German Navy's High Seas Fleet under Vice-Admiral Reinhard Scheer during the First World War.
 The battle unfolded in extensive maneuvering and three main engagements (the battlecruiser action, the fleet action and the night action), from 31 May to 1 June 1916, off the North Sea coast of Denmark's Jutland Peninsula.
 It was the largest naval battle and the only full-scale clash of battleships in that war.
 Jutland was the third fleet action between steel battleships, following the smaller but more decisive battles of the Yellow Sea (1904) and Tsushima (1905) during the Russo-Japanese War.
 Jutland was the last major battle in world history fought primarily by battleships.
The Knights of the Royal Oak was an intended order of knighthood.
 It was proposed in 1660 at the time of the restoration of Charles II of England, known as the English Restoration.
 It was to be a reward to those Englishmen who faithfully & actively supported him during his exile in France.
 The knights so created were to be called "Knights of the Royal Oak", and bestowed with a silver medal, on a ribbon, depicting the king in the Royal oak tree, a reference to the oak tree at Boscobel House, then called the "Oak of Boscobel", in which King Charles II hid to escape the Roundheads after the Battle of Worcester in 1651.
 Men were selected from all the counties of England and Wales, with the number from each county being in proportion to the population.
 William Dugdale in 1681 noted 687 names, each with a valuation of their estate in pounds per year.
 The estates of 18 men were valued at more than £3,000 per year.
 The names of the recipients are also listed in the baronetages, published in five volumes, 1741.

Question: Which naval battle was the HMS Royal Oak fighting in off the North Sea coast of Denmark?
Answer: Battle of Jutland