Prince William and Kate Middleton's big day will not be classed as a 'state occasion'
Because Wills is not yet heir to the throne, the nuptials will not officially be classed as a ‘state occasion’ – so the couple will not be required to include heads of states on the guest list.
Instead, William and Kate, both 28, want to fill Westminster Abbey with charity workers and members of the public.
‘It is certainly not the case that all foreign heads of state will be excluded,’ a source tells the Daily Mail.
‘The guest list is still being drawn up and could change, but as things stand it’s right to say Mr Obama will not be invited.’
A St James’s Palace spokesman adds: ‘The wedding will not be a formal state occasion since Prince William is neither the sovereign nor the heir to the throne.’
Prince William, 28, proposed to Kate in Kenya with Diana, Princess Of Wales‘ sapphire engagement ring.
They will get married on 29 April 2011.