By DAILY MAIL REPORTER
Kate Middleton, in her gown for the evening, left Clarence House alongside Camilla Parker Bowles for the short journey to Buckingham Palace
Prince Harry gave his speech at the reception last night
Their wedding day was a spectacular event watched by two billion people worldwide.
But Prince William and his new bride Catherine finally let their hair down last night with a wedding reception at Buckingham Palace.
Some 300 of the new Duke and Duchess of Cambridge's closest family and friends celebrated with dancing and dinner at the black tie do, which stretched into the early hours.
Kate's second dress was a strapless white satin gazar evening dress with a circle skirt and diamante embroidered detail round the waist. William stuck to the safe bet of a dinner jacket and bow tie
The Queen and Prince Philip handed over the palace for the celebration, which was hosted by William's father Prince Charles.
Perhaps the most eagerly anticipated moment of the night was Prince Harry best man's speech.
The Duchess had switched into a new white outfit for the party - also created by Sarah Burton who designed her wedding gown.
The second dress was a strapless white satin gazar evening dress with a circle skirt and diamante embroidered detail round the waist, St James's Palace said.
Kate was also wearing a white angora bolero cardigan.
Mrs Middleton wore a black capped sleeve dress, cut low at the front and back, with a tiered skirt while her daughter Pippa opted for a long emerald green sleeveless dress with a jewelled embellishment on the front and a plunging neckline
The couple left with Charles and his wife the Duchess of Cornwall. The royal party looked happy and relaxed.
The heir to the throne and his son, the new Duke of Cambridge, were dressed in dinner jackets with black bow ties.
Kate had her hair down in her favourite style for the private party.
Camilla wore a light blue hand-embroidered high-collared floor length Anna Valentine dress for the evening.
A happy and relaxed William made the short journey along The Mall in a Jaguar car with Prince Charles and Camilla closely behind
The new Duchess's family had left the Goring Hotel shortly before 7.30pm.
Her sister Pippa had changed from her bridesmaid dress into a long emerald green sleeveless dress with a jewelled embellishment on the front and a plunging neckline.
Her hair was pinned up at the back and she was carrying a clutch bag.
Kate's mother Carole Middleton smiled after stumbling slightly as she came down the stairs at the hotel and her son James placed a guiding hand on her back as she climbed into a silver people carrier.
Camilla and Prince Charles were not far behind the newlyweds as they travelled down The Mall
Princess Anne and her husband Timothy Laurence arrive at Buckingham Palace for last night's reception
Earl Spencer's children Lady Kitty, Lady Amelia and Lady Eliza and Viscount Althorp arrived together for the wedding party
When the party concludes, the newlyweds were expected to spend their first night as a married couple at the Palace.