Nicky, Barron's eldest sister, also took to social media to shares snaps from the big day.
'It's official!' she captioned.
Congratulations to the youngest Hilton!
Paris Hilton has halted her wedding prep to celebrate her younger brother Barron's special day!
The 28-year-old Hilton wed his longtime partner, socialite Tessa Gräfin von Walderdorff, in a lavish St. Bart's ceremony.
Barron's proud sister posted some of the first social media images of the wedding, showing the new husband and wife beaming in front of the church steps.
'Mr. & Mrs. Hilton,' Paris captioned a loved-up picture.
Nicky, Barron's eldest sister, also took to social media to shares snaps from the big day.
'It's official!' she captioned.
Congratulations to the youngest Hilton!