Her mother, Duchess of York Sarah Ferguson, is of course known for her natural red locks so perhaps her daughter wanted to follow in her footsteps for the biggest day of her life.
The nuptials come just five months after the glittering wedding of Prince Harry, younger son of heir-to-the-throne Prince Charles, and USA actress wife Meghan, now the Duchess of Sussex, at the same location.
The newlyweds will then depart on a short carriage procession around Windsor.
Kanye West to Visit Trump This Week to Discuss Prison Reform, Violence
Rapper-turned-MAGA-enthusiast Kanye West is heading to the White House to share a little of that dragon energy with President Turmp and his son-in-law Jared Kushner .
The loved-up pair have also asked the bride's cousins and children of Prince Edward and Sophie Wessex, Louise Mountbatten-Windsor and her brother James Viscount Severn to take part in the royal wedding as Special Attendants. He and Eugenie have dated for many years.
He will stay in Windsor for the post-wedding lunch hosted by the Queen but will return to Scotland in the afternoon, missing the black-tie dinner being thrown by his brother, Prince Andrew.
Police teams have been meticulously checking and sealing water drains near the castle, and sniffer dogs are checking for explosives in the royal-themed shops, restaurants and tea rooms frequented by tourists.
Imf Warns Of 'somewhat' Greater Global Financial Risk
The IMF announced it had reduced its outlook on the global economy to a 3.7% growth rate for this year and next, down 0.2% from what it had originally predicted in July.
The Queen's granddaughter is marrying drinks executive Mr Brooksbank in St George's Chapel, Windsor Castle, on Friday.
About 38,000 people signed a petition, organized by campaign group Republic, against taxpayers' money being spent on the occasion.
The group says Eugenie does not carry out royal duties and that weddings are personal, private occasions, not affairs of state.
The This Morning at the Royal Wedding show continues until 12.30pm. We bet there will be a lot of black.
Fox Hires Former White House Communications Director Hope Hicks
Mr Trump is also reported to have a close relationship with host Sean Hannity, a leading cable news cheerleader of the president. Fox, the media company formed in the wake of 21st Century Fox's sale to the Walt Disney Company, announced the hiring on Monday.