Robert Cosby Jr., son of The Real Housewives of Salt Lake City (RHOSLC) star Mary Cosby, has died at the age of 23, TMZ reports. Cosby Jr., who had dealt with drug-related legal troubles, died after a home emergency. his die Mary Cosby also confirmed this.

“Our beloved son Robert Jr. has been called into the home of the Lord,” Mary Cosby wrote in the statement. “While our hearts aches, we take comfort in God’s promises and know that he finally has peace.”
The cause of death has not yet been revealed, but TMZ reported, citing Salt Lake City. Utah Police officials said it may have been a case of overdose. According to the outlet, fire officials and medical personnel responded to his residents on Monday night.
Robert Cosby Jr. has died just weeks after he and his ex-wife Alexiana Smokov filed for divorce. As a result, there’s been a lot of interest in Smoakoff and her relationship with Robert Cosby Jr. In this article, we’ll take a look at what we know about them.
Who is Robert Cosby Jr.’s wife, Alexiana Smokoff?
Alexiana Arian Smokoff and Robert Cosby Jr secretly married in a Utah courthouse in 2022. Their marriage was revealed during Season 4 of RHOSLC, even though Mary Cosby was not a regular cast member on the show at the time. The show also revealed that both Smokoff and Cosby Jr. had struggled with drug-related issues.
Alexiana filed for divorce in Salt Lake County District Court on November 24, 2025, shortly after Robert was arrested. That includes the first arrest in September 2025 for a misdemeanor domestic violence incident involving Smokov. Then, in November 2025, Smokov was arrested again at his parents’ home for violating a protection order.
This story is being updated.


