One tragic detail about the Kardashian family is that Robert Kardashian Sr. passed away before his kids' reality show began. Partly because of that, "Keeping Up with the Kardashians" viewers never got a glimpse of the family's dynamic with Robert's third wife, Ellen Pierson. However, let's just say that's not the only reason the Kardashians' stepmother never made an appearance on the show. Hello, legal drama.

Newbies to "The Kardashians" (where have you been?) may have been surprised to hear Khloé and Kim Kardashian allude to a strained relationship with Pierson in the show's Season 6 finale (more on that in a sec), but longtime "KUWTK" fans probably weren't. After all, back in 2012, the Kardashian family had some serious legal drama with Robert's widow , kickstarted by Pierson telling th

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