Royal aides say Prince William and Kate Middleton are considering asking guests at their April 29 wedding to make donations to charity instead of sending them wedding gifts.

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Kate Middleton and Prince William pose at St. James's Palace in London on Nov. 16, 2010, after their engagement was announced.

A spokesman who asked not to be identified because of Royal Family policy said Sunday this option is being considered but no firm decision has been made.

Under the plan, close friends and family could still give the couple traditional gifts, but a substantial amount of money could be raised for charity.

Aides said the royal couple is determined to make sure their wedding is not overly ostentatious.

The guest list has not yet been released.