The meaning of a modern royal wedding

Historian Simon Schama explains how the meaning and symbolism of royal weddings has changed.

He told the BBC: "You take something incredibly old, the sort of vessel of national memory, the royal family, and you make it something as simple and fresh as the moments by which we all renew ourselves.

"Royal weddings used to be about power… basically mergers and acquisitions… not now, it's really all about the next generation making something old very fresh for the future."