He joined about 100 guests, who included British actress Emilia Clarke, who stars in US fantasy series Game of Thrones, and senior executives from companies such as Virgin and British Airways at the reception, held in a fashion photographic studio that has been used by Madonna.

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This figure includes modestly paid workers at reception desks and in mail rooms, and it thus understates what senior bankers earn.

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On Monday night, PA reported that about 15 students -- members of the School of Oriental and African Studies' branch of Stop the War Coalition -- occupied the reception area of a BBC building in central London and demanded to speak to a senior member of the corporation.

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Lord Salisbury, one of the senior organisers of the Thames Diamond Jubilee Pageant and chairman of the Thames Diamond Jubilee Foundation, also attended the reception.

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