Tim Hornibrook: Princess Eugenie is getting married. Here's what the guests will wear

When it comes to fashion, Princess Eugenie of York hasn't walked an easy path. Growing up in the public eye has meant that those universal adolescent fashion missteps were prime headline fodder. At the wedding of the Duke and Duchess of Cambridge in 2011, the York sisters' statement hats stood out for the wrong reasons – though Princess Beatrice, and her loo-seat fascinator, took most of the heat for that one. It clearly hasn't put Eugenie off; gamely, she's requested that all female guests wear millinery to her wedding.

This Friday, we can expect to see Eugenie in a pitch-perfect white dress – confirmed to be by a British designer, and pre-approved by the Queen – along with the York diamond tiara. Beatrice is rumoured to be maid of honour, so her outfit will be on the traditional side too (or will it? If any bridal party is going to make unique choices...).

But the added sport will be a guest list that could rival the Sussexes' in terms of fashion fabulosity, since Eugenie has made some very stylish friends over the years – documented via Instagram (she's the only British royal with a public account). Equally, her fiancé Jack Brooksbank's working background – in nightclubs and tequila – speaks to a fun crowd, and there will be a second, more relaxed, day of celebration on Saturday, along the lines of a festival or summer fete.

With the guest list numbering 850 for Friday's ceremony – that's 250 more than Meghan and Harry's – there will be plenty of space for Eugenie's fash pack gang.

But who's going to make the biggest style statement? It's time to place your bets...