On March 16, 1921, the Turkish Foreign Minister and the British Foreign Office signed an agreement in London. In exchange for the 22 British prisoners in Turkey, among them a relative of Lord Curzon and brother of Lord Rawlinson, Britain would set free 64 Turkish prisoners from Malta. These excluded those it was intended to prosecute for alleged offences in violation of the laws and customs of war or for massacres committed in any part of the Turkish Empire after war had broken out. British Admiral Sir John Michael de Robeck, who had been second-in-command of Allied naval forces at the Dardanelles, commented: "It would be hard under these conditions to convict most of the exiles before an Allied court."