Friendly exes!

In yet another display of theiramicable relationship,Prince Andrewwished his ex-wifeSarah Fergusona happy birthday on Monday.

“Wishing you a very happy day!” he added.

His social media message came afterPrince HarryandMeghan Markleannounced on Monday that they’reexpecting their first child— news which Andrew has not yet addressed on social media.

Of course, Andrew has had plenty to celebrate recently. In addition to his ex-wife’s birthday, his daughterPrincess Eugenietied the knotwithJack Brooksbankon Friday.

Press Association via AP Images

Princess Eugenie wedding

Princess Eugenie wedding

During the ceremony, the proud papawalked down the aislewith 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.”

REX/Shutterstock

Royal Ascot, Day Four, UK - 22 Jun 2018

Andrew and the Fergie wed on July 23, 1986, before welcoming their daughtersPrincess Beatriceon Aug. 8, 1988, and Eugenie on March 23, 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.

Tim Graham/Getty

Andrew And Sarah Wedding

Since splitting, the pair has remained friendly, and Fergie actually lives at 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.”

And Fergie isn’t the only member of her family that feels this way! Eugenie has famously said, according to theBBC, “They are the best divorced couple I know.”

In fact, Fergie told PEOPLE in a 2011 article that she and Andrew get along so well that she’s asked her daughters, “Do you think Mummy and Papa should get back together again? And they say, ‘You’re great the way you are now; it’s fine.’ “

source: people.com