Prince William put his own wedding plans on hold as he watched Blackpool's Premier League clash with Wolves on a friend's stag do.
The second in line to the throne, who announced his engagement to Kate Middleton on Tuesday, took in the match at Bloomfield Road from one of the hospitality areas with a group of friends.
The 28-year-old was then thought to be heading to the popular Pleasure Beach theme park for a private party with the rest of the group.
William, who is president of the Football Association, met with Blackpool club officials, including manager Ian Holloway, before the match.
"I had the privilege of meeting him," said Mr Holloway. "I told him what a cracking lady his mum was and how much we all miss her, and how proud I am of him and his brother.
"Then I told him to leave our women alone if he goes out tonight! That was a joke. I just said be careful where you go!"
Blackpool is one of the most popular destinations in the country for stag weekends.
When asked if he thought William should return for his own stag do, Holloway quipped: "Yes, and I should have said, 'Don't worry I've got my suit ready with a carnation in it mate. I'll be expecting my invite!'
Blackpool survived a tense finale to win the match 2-1 which may have pleased William who supports Wolves' West Midlands rivals Aston Villa.
A spokesman for St James's Palace said the prince was enjoying a private weekend with friends which had been planned for a long time.