Nicole Kidman and Tom Cruise’s daughter Isabella Cruise has reportedly tied the knot.

According to Woman’s Day magazine, the 22-year-old married Max Parker in a secret ceremony at The Dorchester Hotel in Central London on September 18.

The pair, who has been dating since the beginning of the year, said "I do" in front of a small group of their closest friends.

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Kidman is said to have been present at the nuptials, however neither Bella’s dad Tom Cruise, 53, or her brother Connor Cruise, 20, were there.

The magazine reports the notoriously private adopted daughter of the ex-couple didn’t want to risk her wedding becoming public knowledge before the day.

Bella, a practicing Scientologist who recently graduated from a hair and make-up course, asked four fellow graduates from the prestigious Vidal Sassoon Academy to be her bridesmaids.

She wore a sleeved, thigh-length lace dress while her bridesmaids wore pale pink jumpsuits.

Parker, a British IT consultant, had five groomsmen, two of which were Scientologists.

According to one insider, Bella has already changed her name to Isabella Parker.

Kidman and Cruise adopted Bella in 1993 and Connor in 1995, but after they divorced in 2001, both children decided to live with their father.

“They are generous, kind and hardworking,” the "Moulin Rouge" star told Australian Woman’s Weekly of her eldest two children in 2014. “And these are traits that I love to see in my children.”

Kidman also has two daughters, Sunday Rose and Faith Margaret, with husband Keith Urban.

This article originally appeared on News.com.au