British Prince Charles (L) and his wife Camila (R Front), Duchess of Cornwall, greet residents during their visit to Mexico, in Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)

Image provided by British Embassy in Mexico, of Prince Charles (L), of Wales, and his wife, Camila (C), Duchess of Cornwall, participating in a visit to Pachuca city Zocalo, state of Hidalgo, Mexico, on Nov. 2, 2014. Prince Charles of Wales and his wife Camila, Duchess of Cornwall, are on a four-day visit to Mexico, invited by the Government in order to increase bilateral relations in several areas. (Xinhua/British Embassy in Mexico)

British Prince Charles (C) and his wife Camila, Duchess of Cornwall, greet residents during their visit to Mexico, in Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)

Image provided by British Embassy in Mexico, of Camila (L), Duchess of Cornwall, participating in a visit to the British Cemetery, in Real del Monte, state of Hidalgo, Mexico, on Nov. 2, 2014. Prince Charles of Wales and his wife Camila, Duchess of Cornwall, are on a four-day visit to Mexico, invited by the Government in order to increase bilateral relations in several areas. (Xinhua/British Embassy in Mexico)

British Prince Charles (L) greets residents during his visit to Mexico, in Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)

Image provided by British Embassy in Mexico, of Prince Charles (C-Front) of Wales, and his wife, Camila (R-Front), Duchess of Cornwall, participating in a visit to the Magattzi School, in Real del Monte municipality, state of Hidalgo, Mexico, on Nov. 2, 2014. Prince Charles of Wales and his wife Camila, Duchess of Cornwall, are on a four-day visit to Mexico, invited by the Government in order to increase bilateral relations in several areas. (Xinhua/British Embassy in Mexico)

Image provided by British Embassy in Mexico, of Prince Charles (C) of Wales, and his wife, Camila (R), Duchess of Cornwall, participating in a visit to the Pasty Museum, in Pachuca city, state of Hidalgo, Mexico, on Nov. 2, 2014. Prince Charles of Wales and his wife Camila, Duchess of Cornwall, are on a four-day visit to Mexico, invited by the Government in order to increase bilateral relations in several areas. (Xinhua/British Embassy in Mexico)

Prince Charles of Wales (C) and his wife Camila, Duchess of Cornwall, arrive at the International Airport in Mexico City, capital of Mexico, on Nov. 2, 2014. Prince Charles of Wales and his wife Camila, Duchess of Cornwall, are on a four-day visit to Mexico. (Xinhua/Alejandro Ayala)

Prince Charles of Wales (L) and his wife Camila, Duchess of Cornwall, arrive at the International Airport in Mexico City, capital of Mexico, on Nov. 2, 2014. Prince Charles of Wales and his wife Camila, Duchess of Cornwall, are on a four-day visit to Mexico.(Xinhua/Alejandro Ayala)

British Prince Charles (C) waves to the crowd during his visit to the Pasty Museum, in the city of Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)

British Prince Charles (R) and his wife Camila (L), Duchess of Cornwall, make Pasties during a visit to the Pasty Museum, in the city of Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)

British Prince Charles and his wife Camila, Duchess of Cornwall, visit the Pasty Museum, in the city of Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)

British Prince Charles (R) and his wife Camila (L), Duchess of Cornwall, visit the Pasty Museum, in the city of Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)

British Prince Charles (2nd, R), his wife Camila (R), Duchess of Cornwall, and Hidalgo state Governor Jose Francisco Olvera (2nd, L), visit the Pasty Museum, in the city of Pachuca, state of Hidalgo, Mexico, on Nov. 2, 2014. (Xinhua/Jose Mendez/POOL)