The 46-year-old filmmaker and his 33-year-old fiancee tied the knot after being engaged for more than two and a half years.
Friend Luca Calvani posted on Instagram a photo of the bride in her Phillipa Lepley wedding dress, a lace A-line gown with a long train. She wore a pink and white flower crown.
Ritchie, who recently directed "The Man from U N C L E and is currently working on the movies "Knights of the Roundtable" and "King Arthur", has three children with Ainsley-son Rafael, 3, and daughters Rivka, 2, and Levi, 1.
The two boys too attended their father's wedding.