Denise Richards' Mom Dies of Cancer

11/30/2007 6:29 PM PST
After a long battle with kidney cancer, Denise Richards' mom, Joni, died this week.

Reps for the "Wild Things" star confirmed the sad news to OK! magazine. According to the mag, Richards, along with her young daughters and father, held a two-week hospital bedside vigil during Joni's final days.

Denise has endured a tumultuous family life, having been involved in a contentious custody battle with ex-husband Charlie Sheen, ever since they divorced last year.