Question: When did the MV Bessel run aground to at the second largest island in the Mediterranean?

Context paragraphs:
Storm of 1897: The storm of 1897 was a severe storm that struck the lower to central North Island of New Zealand on 16 April 1897.  It caused the ship "Zuleika" to run aground near Cape Palliser, with the loss of 12 lives, and severe flooding.  At Clive the flooding caused the loss of a further 12 lives and one person was drowned near Kapiti.  There were six further unconfirmed reports of drowning, bringing the total loss of life directly related to the storm event to between 25 and 31.  Based on descriptions of the storm, particularly that of Captain Marten of the "Waiapu", it may have been an extratropical cyclone.

Sardinia: Sardinia ( ; Italian: "Sardegna" ] , Sardinian: "Sardìgna/Sardìnnia" ] /] , Sassarese: "Sardhigna", Gallurese: "Saldigna", Catalan: "Sardenya", Tabarchino: "Sardegna") is the second largest island in the Mediterranean Sea (after Sicily and before Cyprus) and an autonomous region of Italy.  It is located in the Western Mediterranean, to the immediate south of the French island of Corsica.

List of shipwrecks in the Bristol Channel: A number of ships have run aground or sunk in the Bristol Channel, a stretch of water between southern Wales and Somerset.  Cardiff, Barry and Penarth were once the largest coal exporters in the world and the channel received significant traffic at the beginning of the twentieth century during exportation.

CSS Curlew: CSS "Curlew" was an iron-hull North Carolina Sounds paddlewheel steamboat that was taken into the Confederate Navy in 1861.  It was run aground at Fort Forrest ( ) and burned in the battle for Roanoke Island on February 8, 1862.  Its wreck was discovered in 1988 and archaeologically investigated in 1994.

W. H. Dimond (barquentine): W. H. Dimond was a three-masted barquentine of 390 tons, built by Matthew Turner, of Benicia, California, for J. D. Spreckles for the Island trade.  Later transferred to the Oceanic Steamship Co., she was sold out of the trade in 1905, and was converted to a schooner by the Alaska Codfish Co.  She was wrecked 17 February 1914, having run aground on Bird Island, Alaska, carrying general cargo from San Francisco to Unga Island.  Her lines, sailplan, and a rendering are shown in Chapelle's "The History Of American Sailing Ships".

Marco Polo (1851 ship): Marco Polo was a three-masted wooden clipper ship, launched in 1851 at Saint John, New Brunswick.  She was named after Venetian traveler Marco Polo.  The ship carried emigrants and passengers to Australia and was the first vessel to make the trip in under six months.  Later in her career, the ship was used as a cargo ship before being run aground off Cavendish, Prince Edward Island in 1883.

MV Bessel: Bessel was a cargo ship that was built in 1925 as Sorrento by AG Weser, Bremen for German owners.  She was sold in 1926 and renamed "Bessel".  She was seized by the Allies in Vigo, Spain, in May 1945, passed to the Ministry of War Transport (MoWT) and renamed Empire Coniston.  In 1946, she was lent to the Danish Government and was allocated to them in 1947.  She was sold into Danish merchant service and renamed Birgitte Skou.  In 1959, she was sold to Italy and renamed N Martini.  She was renamed Nicolo Martini in 1961, serving until 1972 when she ran aground at Portoscuso, Sardinia.  Although refloated she was declared a total loss and was scrapped in 1973.

SS City of Adelaide (1863): The "City of Adelaide" was a passenger steam ship launched in 1863 in Glasgow, Scotland.  The vessel was later converted to a Barque for use as a cargo transport.  In 1912 the vessel was gutted by fire, and in 1916 the burnt hulk was run aground in Cockle Bay, Magnetic Island, Australia.  During the Second World War four people were killed in a training accident when a RAAF aircraft struck the masts of the vessel.

Rescue Rock: Rescue Rock ( ) is a submerged rock marked by breakers, 0.6 nautical miles (1.1 km) northeast of Skua Island in the entrance to the Bay of Isles, South Georgia.  Charted in 1930 by DI survey personnel.  So named because a whale catcher passing near this rock sighted a flag on Skua Island, eventually leading to the rescue of the survey party at Camp Bay where their vessel had run aground.

Exxon Valdez: Oriental Nicety, formerly Exxon Valdez, Exxon Mediterranean, SeaRiver Mediterranean, S/R Mediterranean, Mediterranean, and Dong Fang Ocean, was an oil tanker that gained notoriety after running aground in Prince William Sound spilling hundreds of thousands of barrels of crude oil in Alaska.  On March 24, 1989, while owned by the former Exxon Shipping Company, and captained by Joseph Hazelwood and First Mate James Kunkel bound for Long Beach, California, the vessel ran aground on the Bligh Reef resulting in the second largest oil spill in United States history.  The size of the spill is estimated to have been 40900 to , or 257,000 to 750,000 barrels.  In 1989, the "Exxon Valdez" oil spill was listed as the 54th largest spill in history .

Supporting paragraphs: MV Bessel Sardinia
Answer: 1972