Pensioners from across the South have been protesting at Westminster.
Boys with the life-limiting illness Duchenne Muscular Dystrophy have lobbied the Prime Minister for more research into their condition.
The lunch is being held in the Palace of Westminster with the Prince of Wales, the Duchess of Cornwall & the Duke & Duchess of Cambridge.
VIDEO: Pensioners from across the South have been protesting at Westminster. They were lobbying MPs over age-related benefits such as free bus passes. Interviewees: Tony Hall and Alan Burnett, representing the pensioners.
Hundreds of pensioners from across the South and South East are protesting outside Westminster this lunchtime.
They're lobbying their MP's over age-related benefits like bus passes and winter fuel allowances, because they're worried they could be means-tested in the future.