Prince William took his bride-to-be Kate Middleton to his mother’s grave a week before the couple get married.

The couple wandered through the grounds of the Althorp Estate before taking a boat to the island where Princess Diana was buried 14 years ago.

Wills and Kate laid flowers at Diana’s tomb during the emotional visit.

A source told the Daily Mirror: “It was very important for William to take Kate to visit his mum just before their wedding day.

“Diana is still a huge part of her boys’ everyday life and always will be.”

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Meanwhile, Kate Middleton went on a last-minute shopping trip in Chelsea yesterday to buy the “Kate blouse” from high-street retailer Whistles.

The cream silk top worn by Kate in her official engagement portrait was reissued by the shop earlier this month.

The shop quickly saw sales of the blouse, priced at £125, skyrocket.

While out shopping, Kate wore a £480 Issa black wrap dress.

She popped into several shops on the Kings Road, passing by a branch of Kath Kidston which had a sign in the window that read: “WILL & KATE 20th 2011 ROYAL WEDDING.”

Earlier in the week, Kate shopped at high-street shop Warehouse where she bought four size 8 dresses for £225.

Rumours that dressmaker Sophie Cranston was designing Kate Middleton’s bridal gown have been denied.

A spokesman for her fashion label Libelula said: “For the purpose of clarification we are not designing Kate Middleton’s wedding dress. We, like everyone else, can’t wait to find out who is.”