Beatrice is the star of royal red carpet in white tulle and sequins at the Queen's pre-wedding gala dinner

Princess Beatrice stole the show last night at a dinner that was held for royals from across Europe and the Middle East.

The daughter of Prince Andrew and the Duchess of York looked stunning in her white and silver sheath dress covered with sequins and tulle fishtail as she arrived at the Queen's gala dinner last night.

She was with her sister, Eugenie, who turned up at the event at the Mandarin Oriental Hotel in Knightsbridge in a dress thought to be designed by Vivienne Westwood.

Princess Beatrice looked stunning as she arrived at the pre-wedding dinner at the Mandarin Oriental Hotel in Knightsbridge, central London

 Prince and Princess Michael of Kent, left, and Queen Sofia of Spain

 Crown Prince Pavlos and Crown Princess Marie-Chantal of Greece, left, and Prince Felipe of Asturias

 Prince Charles went along to the hotel but left before dinner so that he could eat with Princes William and Harry

 Sweden's Crown Princess Victoria and the Duke of Vastergotland, left, and Queen Anne-Marie of Greece

 Britain's Princess Alexandra, left, and Queen Margrethe II of Denmark

 Grand Duke and Duchess Henri and Teresa of Luxembourg, left, and Prince Edward and Sophie, Duchess of Wessex

 One's here now: The Queen was fashionably late in a long lilac dress with silver swirls

Their father, the Duke of York, attended along with his sister, Princess Anne, and brother, the Earl of Wessex, Prince Edward.

The Prince of Wales and Duchess of Cornwall missed the dinner but attended a drinks reception beforehand.

Instead they dined at Clarence House, their official London home, with Princes William and Harry.

Less than a minute's drive away, Kate Middleton was with her family at the exclusive Goring Hotel in Belgravia.

Royal guests arrived through the five-star hotel's back entrance, overlooking Hyde Park and hundreds of eager waiting fans.

Sophie, Countess of Wessex, accompanied by her husband, the Earl of Wessex, stunned the crowd with a red floor-length dress.

The Queen was fashionably late in a long lilac dress with silver swirls and was met by Lady Anson, the evening's host and the Queen's cousin and was greeted with a kiss on both cheeks outside the hotel.

Earlier, the Princess Royal arrived by minibus along with Zara Phillips and Mike Tindall, and Peter Phillips and Autumn Kelly. Prince and Princess Michael of Kent, Lord Freddie Windsor and Lady Gabriella came in a separate coach.

Other royal guests included Prince Pavlos of Greece and Princess Marie-Chantal, Queen Sofia of Spain, Prince Felipe and Princess Letizia of Spain, Queen Margarethe of Denmark, Crown Prince Alexander of Serbia and Princess Katherine, the Grand Duke and Duchess of Luxembourg, King Harald of Norway and Queen Sonia.