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The Prince of Wales (left) shakes hands with the former King of Bulgaria, King Simeon II, who is now the country's Prime Minister, in the Council of Ministers building, in the Bulgarian capital of Sofia on the first day of a two day visit. * Following a private meeting with the President, the Prince met King Simeon II who spent more than 50 years in exile before returning to become the country's Prime Minister. (Photo by John Stillwell - PA Images/PA Images via Getty Images)

The Prince of Wales (left) shakes hands with the former King of Bulgaria, King Simeon II, who is now the country's Prime Minister, in the Council of Ministers building, in the Bulgarian capital of Sofia on the first day of a two day visit.  *   Following a private meeting with the President, the Prince met King Simeon II who spent more than 50 years in exile before returning to become the country's Prime Minister.   (Photo by John Stillwell - PA Images/PA Images via Getty Images)