(Bloomberg) -- UK Prime Minister Rishi Sunak’s last-minute cancellation of a meeting with his Greek counterpart Kyriakos Mitsotakis in London has brought renewed attention to the centuries-old dispute over the ownership of the Parthenon Sculptures, sometimes referred to as the Elgin Marbles. Both countries claim ownership of the pieces housed in London’s British Museum, but in recent years the two sides had appeared close to a deal in which they would be loaned to Athens in exchange for other ar