The move may remind some of the numerous people the duke, who is a Royal Navy admiral, has upset with his public gaffes.But there is a precedent for honouring sailors in Trafalgar Square, with Horatio Nelson standing on a much taller column. One of the many occupants of the fourth plinth: ‘Really Good’ by David ShrigleyCredit:Heathcliff O’Malley Built in 1841, the spot was once considered as a possible site for a future memorial to the Queen while others have proposed statues of Nelson Mandela and Margaret Thatcher.A source told The Sunday Times: “A statue of the Queen on the fourth plinth was the original plan. Several artists were approachedby the palace to sound out whether they would submit designs when the time comes. But in the past couple of years everyone has been made aware that it could also be for the Duke of Edinburgh.”Buckingham Palace declined to comment.What do you think about the proposed memorial to the Duke of Edinburgh? Is there anyone else you think should be considered for the prime spot? Tell us in the comments section below. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. A statue of Prince Philip may stand on the famed fourth plinth in Trafalgar Square.A proposed memorial to the Duke of Edinburgh is being considered for the prime spot which has been used for a rotating selection of modern art for the last 20 years.The statue of the 98-year-old duke would be commissioned after his death as a tribute the longest-serving consort in British history, who has more than 22,000 public engagements under his belt.Originally designed for an equestrian statue of King William IV, the plinth has previously been reserved for spectacular and often controversial art pieces.It is currently occupied by a winged bull-like creature made of tin cans called The Invisible Enemy Should Not Exist, created by the artist Michael Rakowitz to highlight the artifacts stolen in the aftermath of the Iraq War.A giant blue cockerel, a skeletal horse and a man who once climbed up and shed his clothes have also stood on the granite plinth.