Some of the rare unseen love letters by Prince Charles to an early girlfriend, including one in which he says he might marry the wrong girl, was sold for more than £20,000 on eBay.
In one letter, he spoke about marriage. He said: "Making a mistake like that is, frankly, something which concerns me enormously."
In a seven-page letter, written on Windsor Castle-headed notepaper in June 1980, he wrote: "My new private secretary is horrified by the idea of ladies in hotel rooms during foreign visits. 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."
The letter is signed: "With much love, Charles."
One of the six notes to Janet Jenkins, a former receptionist at the British consulate in Montreal, was written in 1980, a year before the Prince married the then Lady Diana Spencer.
The other five letters were written in 1976 when the Prince was 26 and a Royal Navy officer on HMS Bronington and Miss Jenkins was 30. In one he wrote of his fear of marrying the wrong woman.
In another, Prince Charles proposed a romantic tryst far from the prying eyes of the media. "I would have thought your apartment is the quietest place. If we went out the press would be on to it in a flash and that would be misery," he wrote.
In one note, he disclosed that he had taken time off from watching his sister, the Princess Royal, compete in the three-day event at the Montreal Olympics, to spend time with Miss Jenkins.
Another told of his regret at "ruining a gloriously cosy evening" by rushing off and is signed: "Much love and a big, anti-lonely 'hug' from Charles."
Welsh-born Miss Jenkins, who sold the letters to a royal memorabilia company in 2002, said: "They show him to be a deeply sensitive, compassionate man." They were bought anonymously for $30,000 (£20,744).