What happens in Norfolk stays in Norfolk.

As first reported at UsMagazine.com on Friday, Prince William did indeed have his bachelor party over the weekend.

"Yes, Prince William celebrated his stag over the weekend," a St. James Palace rep confirms to Us. "The location remains private but it was in the UK."

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According to a royal source, the big bash was held at a friend's countryside estate in Norfolk.

According to The Daily Beast, William, 28, was accompanied by 22 of his closest pals -- including little brother Prince Harry (a key party planner) and nightclub impresario friend Guy Pelly.

"Guy is very much the life of the party, but he is also fiercely loyal and protective of the princes," royal watcher Katie Nicholl told the Daily Beast.

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"There will be plenty of booze and some legendary activities," another royal source added to Us last week.

The groom-to-be's fiancee, Kate Middleton, meanwhile, stayed behind in London to continue wedding planning with sister and maid of honor, Pippa.

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The future Princess, 29, has "started to feel nervous" about the wedding, an insider told Us.

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