Mary-Kate and Ashley Olsen were among the family members who gathered for their older brother Trent Olsen's wedding to Alexis Armistead last month. The twins, both 40, wore stylish black dresses and posed with the bride and groom.

The wedding celebration included a rare family portrait shared by the newlyweds on Instagram. In the photo, Mary-Kate and Ashley Olsen, dressed in floor-length gowns, stood near their parents and the bride and groom. Their younger sister, Elizabeth Olsen, who is pregnant with her first child, and her husband Robbie Arnett, were also present. Elizabeth Olsen, 37, and Arnett, 34, were dressed in formal black attire. Ashley Olsen's husband, artist Louis Eisner, was also in attendance.

The Olsen siblings' half-siblings, Courtney, 29, and Jake, 28, also joined the family photo. The caption accompanying the group shot on Instagram read simply, 'Family.'

The ceremony and reception appeared to take place in Southern California, with the Hollywood sign visible in the background of the reception venue. The newlyweds shared several photos from their wedding day, including one where Mary-Kate Olsen is seen embracing her brother Trent, 42.

Trent Olsen, a writer and producer, was also a child actor. He is the elder of the four children shared by their mother Jarnette and father David. The elder Olsens were married for 18 years before divorcing in 1996. David Olsen later married McKenzie in 1996, and they divorced in 2014. Courtney and Jake are their children from this second marriage.

Elizabeth Olsen has recently been seen in Los Angeles, with her baby bump visible during solo outings. Mary-Kate and Ashley Olsen were last publicly seen together in late April during an outing in New York City. Their most recent joint red carpet appearance was in November 2025 at the CFDA Fashion Awards, where they accepted an award for their luxury label, The Row.