A cross-party group of MPs has launched a fresh bid to return the so-called Elgin Marbles to Greece on the 200th anniversary of the British Government’s decision to buy them — a move that campaigners said could help the UK secure a better deal during the Brexit talks with the EU. The issue has long been a source of tension between, on one side, the UK Government and British Museum, where the 2,500-year-old marbles are currently on display, and, on the other, Greece and international supporters of the reunification of the Parthenon temple’s sculptures. About half the surviving sculptures were taken from the Parthenon in Athens by Thomas Bruce, the seventh Earl of Elgin, and later bought by the British Government after parliament passed an Act that came into force on 11 July, 1816. The other half are currently in the Acropolis Museum in Greece. The circumstances in which Lord Elgin removed about the sculptures are disputed, with some claiming he effectively stole them while Greece was ruled by the Ottoman Empire.