Protesters later unfurled a large “No place for Bezos” banner and lit flares above the famous Rialto Bridge spanning the Grand Canal.
Matteo Battistuta, a 20-year-old student, said he wanted to send the message that “Venice is fighting back, it’s not a dead city, it acts in its own interest before tourism’s”.
“We believe Venice can still be a place worth living in,” he added.
Bezos, 61, and Sanchez, 55, exchanged vows during a ceremony on Friday evening (local time) on the island of San Giorgio Maggiore, opposite St Mark’s Square.
The ceremony capped off a week of yacht parties and VIP events, due to end with a lavish ball – as Venetians remain divided over the impact on the city’s image.
Guests included Ivanka Trump, Leonardo DiCaprio, Kim Kardashian, Kendall and Kylie Jenner, American football star Tom Brady, TV host Oprah Winfrey and Bill Gates.
-Agency France-Presse
