Kim Richards Opens Up About Death of Ex-Husband

— -- Reality star and actress Kim Richards, 51, took to Instagram on Monday to write a heartfelt tribute to her late ex-husband Monty Brinson, who recently died after a long battle with cancer.

"Yesterday I said goodbye to best the friend I've ever had in my life. Monty was an amazing person with an amazing soul," she wrote. "We shared over 30 years of Love & Happiness and brought a beautiful daughter into world. I am so grateful for all that we shared."

The touching note was accompanied by a picture of the two sharing a dance.

"I know we will be together again one day. I love you Monty," she added. "My angel in heaven .. and I know that we be together again one day. I will carry you in my heart always my love...until then ,may you rest in peace."

Brinson's death was announced on Instagram on Sunday by Richards' brother-in-law, Rick Hilton.

"We have lost Monty Brinson after a brave battle with cancer," he wrote next to a photo. "His heart was as big as the moon and he was loved by all he met. He will be sorely missed. I love you always!"

Other family members have also taken to social media to share their condolences.

"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," Paris Hilton wrote.