Kim Richards Ex-Husband Dead at 58

Monty Brinson, ex-husband of "Real Housewives of Beverly Hills" star Kim Richards, died on Sunday after a long battle with lung cancer. He was 58.

Brinson and Richards were married for three years, 1985 to 1989 and have a daughter. They have remained very good friends.

According to a source of ET, Richards spent a lot of time with her ex-husband during his final days at a hospice facility.

On Monday, Paris Hilton shared a photo collage of Brinson on social media in his honor.

Heartbroken to hear the sad news of my Uncle @MontyBrinson's passing after his long brave battle with cancer. He was such an incredible man with such a huge heart. He was so insightful & positive about life, even with all he was going through. He always had a smile on his face & lit up the room with his positive energy & fun personality. He will be truly missed. ???? My thoughts & prayers are with @BrookeWiederhorn @KimRichards11 & his family. ???????? #RIPMontyBrinson

A photo posted by Paris Hilton (@parishilton) on Jan 25, 2016 at 6:50am PST