In 1911 the sword was carried before George V at the official opening of the Thistle Chapel in St Giles' Cathedral, Edinburgh – the first time any of the regalia had left Edinburgh Castle since 1822. During the Second World War, the Honours were hidden at the Castle owing to fears they might be lost if the UK fell to Germany. The crown and Stewart Jewels were buried under the floor of a water closet, while the sceptre, sword and wand were hidden inside a wall. The only officials who knew of the hiding places were George VI, the Scottish Secretary of State, the King's Remembrancer, and the Governor General of Canada. In 1953, they were presented to the newly crowned Elizabeth II at a National Service of Thanksgiving in St Giles' Cathedral. Keen to avoid the service being interpreted as a Scottish coronation, Winston Churchill, then Prime Minister, advised the Queen to dress with relative informality.