In addition to his ex-wife’s birthday, his daughter Princess Eugenie tied the knot with Jack Brooksbank on Friday.
During the ceremony, the doting dad walked down the aisle with his 28-year-old daughter at St. George’s Chapel, the same venue where Eugenie’s cousin Harry wed Meghan in May.
“It’s a very small role, I just have to walk slowly!” the Duke of York said in an interview ahead of the nuptials, adding that he was sure his daughter would make “an absolutely outstanding bride.”
Fergie and Andrew's united appearance at Eugenie's wedding prompted many royal fans to believe the couple had reunited their relationship.
The couple first wed on July 23, 1986. They welcomed their daughters Princess Beatrice in 1988 and 1990.
Despite their growing family, there was trouble for the couple, and they announced their separation in March 1992, before officially divorcing four years later.
Fergie and Andrew have remained amicable since their divorce, with the Duchess even living in Andrew's royal residence, Royal Lodge, in Windsor.
“I’m in and out all the time, and he’s in and out all the time,” she explained in a 2016 interview for an Australian radio show. “And no, we’re not married. We’re very happy with the way things are.”
The Duchess of York continued, “I think the great thing is we absolutely are the most extraordinary example of a unified family.”