The Queen and Princes Harry and William were among 650 guests at the wedding of members of two of Britain's
wealthiest families on Saturday.
Princes William and Harry (right) were acting as ushers
The two princes were ushers at the service, held in Chester Cathedral.
The bride, Lady Tamara Grosvenor, 24, is the daughter of the Duke of Westminster, who owns large parts of central London and has a £4bn fortune.
The groom, Edward van Cutsem, is the godson of the Prince of Wales, although Prince Charles was not present.
Instead, the prince visited the families of soldiers currently serving with the Black Watch in Iraq.
His informal visit follows the deaths of three of its battle group in a suicide attack in Iraq on Thursday, which came after troops were moved from Basra closer to Baghdad.
The prince had been due to sit in the front row of the wedding guests alongside the Queen, the Duke of Edinburgh and William and Harry.
Camilla Parker Bowles, who was due to be at Charles' side for the wedding, decided not to attend in his absence.
Edward van Cutsem, 29, is the eldest son of Norfolk landowners Emilie van Cutsem and her husband Hugh, a friend of Prince Charles' from his university days at Cambridge.
The couple held a reception at Eaton Hall in Cheshire
Lady Tamara arrived at the cathedral wearing a dress designed by Bruce Oldfield made of ivory silk
georgette embroidered with rows of tiny antique silk velvet rosebuds, with a 2m train.
She wore a tiara designed by Carl Faberge in the style of a laurel wreath set with cushion shaped diamonds and shoes made by Jimmy Choo couture.
Clergy from both the Church of England and the Catholic Church attended the wedding as the groom is Catholic.
Lady Tamara will assume her husband's name but retains her title, so her married name will be Lady Tamara van Cutsem.
The Duke and Duchess of Westminster said in a statement: "This is a very special day for us all. Both families are proud and delighted and we wish Tamara and Edward every possible happiness together."
A reception is being held after the wedding at Eaton Hall, the Westminster family's country seat.
The groom, a City banker, and his wife are to live in London.