Alicia Carroll, who runs Los Angeles-based royal memorabilia dealership Everything Royal, said yesterday the heir to the British throne had written the letters to Montreal-based Janet Jenkins between 1976 and 1980.
The letters, which are being sold for 30,000 dollars, were bought by Carroll in 2002 when she was contacted by Jenkins, who worked at the British Consulate in Montreal when she met the young prince.
In one letter dated June 8, 1980 only eight months before Charles announced his engagement to the future Princess Diana, Charles wrote of the pressures of having to find a bride."I can see that I shall just have to get married as soon as possible and then all these people might relax a little .! I still think my solution of marrying a girl from each commonwealth country is the best one," he said.
"Don't worry - whatever happens I will make sure you are given early warning," he writes, signing off"with much love, Charles." Carroll told media that the letters were historically significant because they were from"a man who is going to be the king of England."