Prince Charles's godson and the son from his wife's first marriage is set to marry his fashion magazine editor girlfriend outside of London.

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The wedding of Tom Parker Bowles, known as TPB for short, and Sara Buys will take place Saturday at St. Nicholas Church in Rotherfield Greys, near Henley-on-Thames, about an hour outside of London, reported ABC News Friday.

His mother, the Duchess of Cornwall, and the Prince of Wales will attend. Stepbrothers Princes William and Harry are also on the guest list.

The couple met at Oxford University. TPB later worked in public relations and Buys worked at the magazine Vogue.

While on business at the 1999 Cannes Film Festival, TPB was seen using cocaine at a party and he later admitted to having a drug problem for which he sought treatment.

He later quit public relations and wrote on cooking for magazines and at the suggestion of Buys, wrote a cookbook in 2004 "E is for Eating: An Alphabet of Greed."

Before Charles married Camilla Parker Bowles, Tom and his sister, Laura, each got $1.3 million trust funds from the Prince of Wales, ABC said.