This is billionaire Bezos's second marriage after breaking up with MacKenzie Scott in 2019. Before the wedding, Amazon founder and Sanchez had been engaged since 2023.
While many details about the wedding are still kept confidential, including the list of guests and the exact time of the wedding, some information has been released.
Where will Jeff Bezos and Justin Sanchez's wedding be held?
According to USA Today, Bezos and Sanchez will get married in Venice, Italy. The city confirmed this in a statement in March, affirming that the event would not disrupt daily activities.
The city emphasized in a statement: "Venice will easily organize such an event without any disruption to the city, residents and visitors".

"From the beginning, we have coordinated closely and supported the organizers, with the goal of ensuring the event takes place in the spirit of respect for the fragile beauty and uniqueness of the city. Therefore, we will continue to work together to bring the best results."
The wedding venue has not been announced, but the main party will take place at Arsenale, a mediaeval shipwreck workshop.
Jeff Bezos and Lauren Sanchez have arrived at Aman Hotel
Bezos and Sanchez were spotted staying at a luxury Aman hotel in Venice. The couple has been there since June 25 to prepare for the wedding.
When will Jeff Bezos and Lauren Sanchez's wedding take place?
The billionaire couple has not confirmed the official wedding date. But according to The New York Times, the wedding began on June 26. The couple's wedding is expected to take place continuously for 3 days.
Expensive costs of a wedding
Veneto region president Luca Zaia revealed to the media that the wedding of the Amazon billionaire and related details will cost from 46.5 - 55.6 million USD (equivalent to 1,181 - 1,412 billion VND).
It is expected that about 90 private jets will attend this event and the organizers have booked about 30 passenger transport ships.
ABC News received a copy of Bezos and Sanchez's wedding invitation, which clearly stated: "Please don't give away".
Instead, the invitation states that donations will be made on behalf of guests for many organizations, including the UNESCO Venice Office "to protect the city's irreplaceable cultural heritage".
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"This miraculous place has brought us unforgettable memories," the invitation reads. "We hope that through these efforts and your participation, Venice will continue to inspire the surprises of future generations."
A series of A-class guests attended the wedding
The Venice government had said there would be around 200 guests attending the wedding.
The full list has not been made public, but some guests have come to Venice to attend weddings in recent days, including Donald Trump's daughter Ivanka Trump and her husband Jared Kushner.
Von Fürstenberg, Tom Brady, Khloe Kardashian, Kim Kardashian, Kris Jenner and Oprah Winfrey were also spotted at the Venice wedding.