The planners behind Jeff Bezos and Lauren Sanchez's luxurious Venetian wedding have defended the billionaire couple amid fierce backlash from the Italian city's locals.

After a two-year-long engagement, Bezos and Sanchez are set to tie the knot on June 27 - but the ceremony is just one part of their extravagant celebrity-laden celebration.

News of the lavish wedding has sparked outrage among Venice's residents, who have been protesting against the Amazon founder's arrival.

Passionate signs reading 'No space for Bezos' and 'Veniceland: A playground fit for an oligarch' have been plastered across Venice, sharing the sentiment that citizens want Bezos and Sanchez to take their multimillion-dollar wedding elsewhere.

Demonstrators have also been plotting to clog up streets and canals to throw off the wedding's events and hinder the roughly 200 guests from getting around the city.