The Australian actress and her ex-husband Tom Cruise became parents to Isabella, 22, in 1992, before adopting their son Connor three years later.

According to Australian magazine Women's Day, Nicole was in attendance at Isabella's nuptials to her boyfriend Max Parker on September 18 (15) in London.

The outlet claims the couple, who began dating at the beginning of 2015, walked down the aisle at the city's The Dorchester Hotel.

Along with Nicole, there were apparently a small group of the pair's close friends.

However, Isabelle's action star dad and her 20-year-old brother reportedly weren't present.

Isabella is practising Scientologist like her father Tom, and she's said to have asked four of her former course mates from the Vidal Sassoon Academy to be her bridesmaids.

She recently finished studying hair and make-up and is said to have wowed in a thigh-length white lace dress, with her friends wearing pale pink jumpsuits.

British IT consultant Max meanwhile is said to have had five groomsmen.

A source adds that Isabella has already taken her husband's surname too.

Oscar-winner Nicole recently opened up about her relationship with her older children.

She also has girls Sunday Rose, seven, and four-year-old Faith Margaret, with her husband Keith Urban and admits it's a struggle to keep in touch with Isabella and Connor.

"I have four children, so to stay in touch with them is very important," she told "I'm definitely engaged in it (texting) but I don't let it rule my life."

The 48-year-old beauty has made it clear that her family come first over the years.

After saying 'I do' with musician Keith in 2006 she'd never pick her career over him and their daughters.

"The most important things to me are the love of our relationship and my children," she previously told Women's Weekly. "At this stage of my life, and with time being so precious, the joy I get from us as a family outweighs any joy in any other area of my life, by far."