Multi-billionaire Amazon founder Jeff Bezos and Lauren Sanchez have arrived in Venice ahead of their star-studded weekend wedding.

Greenpeace has joined the protests against Jeff Bezos and Lauren Sánchez’s upcoming Venice wedding by unfurling a huge banner in St. Mark's Square.

The event, expected to attract some 200 guests including U.S. President Donald Trump's daughter Ivanka and son-in-law Jared Kushner, as well as scores of stars from film, fashion and business, has been dubbed "the wedding of the century".