Here's what you need to know about the next royal wedding

WINDSOR, England - It's time for another royal wedding at Windsor Castle -- but this time it's less of a global TV spectacle and more of a family affair.

Despite large signs at the castle's ticket booth welcoming people to the wedding, many visitors seem unaware that Princess Eugenie, granddaughter of Queen Elizabeth II, will marry tequila company executive James Brooksbank tomorrow.

Eugenie is the 28-year-old daughter of Prince Andrew and Sarah Ferguson, and ninth in line for the throne.

She has lived most of her life outside the media spotlight, and keeps a low profile compared to cousins Prince William and Prince Harry and their glamorous wives.

That's reflected in the souvenir shops that line the streets leading to the imposing castle.

Royal wedding merchandise fill the windows -- but they feature Harry and Meghan Markle, who also married at Windsor Castle in May in a spectacular, globally televised ceremony.

Snippets of the wedding will be shown on British TV, but only one channel, ITV, is planning to provide live coverage of the proceedings.

Eugenie and Brooksbank are following a precedent set by Harry and Meghan by inviting 1,200 members of the public to the castle grounds for a better view of Friday's festivities.

Like Harry and Meghan, the couple will also say their vows in St. George's Chapel, a masterpiece of the "perpendicular Gothic" style with royal connections dating back to 1475, when construction began under King Edward IV.

Afterward, the newlyweds plan a carriage ride through the streets of Windsor to give the public a chance to see them up close.

It's not clear how many visitors will come to Windsor, a riverside town about 32 kilometres west of London.

Part of the draw will be the chance to catch a glimpse of the queen and other royals, including William and his wife Kate, the Duchess of Cambridge, and their two young children, Prince George and Princess Charlotte.

Five-year-old George will be a page boy in the bridal party, and three-year-old Charlotte will be one of six bridesmaids. Harry and Meghan are also expected to attend.

Eugenie is following tradition by not revealing who designed her wedding gown, but she has said it will be a British designer.

She has asked her older sister, Princess Beatrice, to be her maid of honour.

The queen, who has only just returned from an extended summer holiday in Scotland, plans to host a champagne luncheon for the newlyweds shortly after the ceremony, and a second reception will be held that night.