Investiture II or another member of the royal family each year. A list of those to be honoured is published twice a year, in either the New Year Honours or the Birthday Honours. Approximately 25 investitures are held annually: most in the Ballroom at Buckingham Palace, although the Waterloo Chamber in Windsor Castle and the Palace of Holyroodhouse in Edinburgh, Scotland, are also used. In 2014 The Prince of Wales held an investiture at Hillsborough Castle in Northern Ireland. Investitures are also held in other Commonwealth realms, when the Governor-General acts on behalf of the Queen. The poem "The Investiture" by
Garden at Buckingham Palace and slowly processes through the ranks of assembled guests towards her own private tea tent, greeting those previously selected for the honour. Buckingham Palace garden was one of three royal sites excavated over 25–28 August 2006 by the Time Team of archaeologists led by Tony Robinson. The results were televised, with some live streaming. Timed to help celebrate the 80th birthday of Queen Elizabeth II, this marked "Time Team"'s 150th dig. For the first time, the Queen gave permission for trenches to be dug in the grounds of Buckingham Palace, Windsor Castle, and the Palace of Holyroodhouse, Edinburgh. The Big