Princess Charlotte took a tumble as she arrived at the wedding of Princess Eugenie of York and Jack Brooksbank.
Accompanied by brother, Prince George (5) acting as page boy, the three-year-old bridesmaid enthusiastically waved to the adoring crowds as they approached St George's Chapel, Windsor Castle, before falling on her way in to the church.
Charlotte wasn't the only member of the young bridal party to struggle with the steps.
Page boy Louis De Givenchy, also stumbled as he entered the church, falling onto his hands on the West Steps of the chapel. The six-year-old is the son of Zoe and Olivier De Givenchy. However, both youngsters dusted themselves off and accompanied Princess Eugenie down the aisle.
George and Charlotte were joined in the bridal party by other royal children. Savannah Phillips (7) and her six-year-old sister Isla, daughters of Peter and Autumn Phillips, acted as bridesmaids, alongside Mia Tindall (4), daughter of Zara and Mike Tindall, and Maud Windsor (5), god-daughter of Princess Eugenie and granddaughter of Princess Michael of Kent.
Theodora Williams (6), daughter of Robbie Williams and wife Ayda Field, also took on the role of bridesmaid.
They were wearing dresses and uniforms designed my Amaia Arrieta of Amaia Kids, and the design incorporates the Mark Bradford artwork included in the Order of Service.
Lady Louise Mountbatten-Windsor (14), and James, Viscount Severn, aged 10, the children of Prince Edward and Sophie Countess of Wessex, were both given the role of special attendants.
Prince George seemed curious to be at the second St George's Chapel Royal Wedding of the year but as the trumpeters took their positions to herald the bride, the future king put his hands over his ears.