Princess Eugenie has revealed that modern slavery victims and teenage cancer patients will be at her wedding to represent causes close to her heart.
Representatives from 13 charities - including The Salvation Army's Stop Modern Slavery campaign and the Teenage Cancer Trust - are among the 1200 members of the public invited to join the celebrations in the grounds of Windsor Castle tomorrow.
A further 850 guests, including the Duke and Duchess of Cambridge, the Duke and Duchess of Sussex and celebrities like Robbie Williams and his wife Ayda Field, will attend the hour-long service inside St George's Chapel.
Photos were taken today reveal the extensive preparations being carried out ahead of the high-profile event, with police dog handlers sweeping the streets and local officials erecting crowd control barriers in anticipation of the influx of visitors tomorrow, according to the Daily Mail.
Residents are also getting into the spirit of the big day, with snaps showing bunting, flags and bunches of balloons being strung across the streets.
Following the lead of the Duke and Duchess of Sussex, who married at St George's Chapel in May, Eugenie and Jack invited members of the public to apply to join the celebrations in the grounds of Windsor Castle.
They sifted through the roughly 10,000 applications and sent out 1200 invitations to deserving charity workers, community leaders, Royal Household staff and pupils from Princess Eugenie's former schools.
Making the announcement on the Duke of York Twitter page, a spokesperson said: "The Wedding of Princess Eugenie and Jack Brooksbank takes place tomorrow!
"The couple have invited members of the public to join the celebrations in the grounds of Windsor Castle, including individuals from charities they support."
Prince Andrew's youngest daughter is a patron of the majority of the charities, while a number also have links to the rest of the York family, and the Brooksbanks.
The charity Street Child, which recently merged with Sarah Ferguson's charity, will be represented, as will Supporting Wounded Veterans, which is headed up by Jack Brooksbank's father George.
Rather like Harry and Meghan, Eugenie and Jack are expected to be surrounded by A-list invitees when they tie the knot.