News 'Downton Abbey' Star Michelle Dockery's Fiance John Dineen Dies of Cancer at 34 By Jackie Willis 6:13 AM PST, December 15, 2015 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. 32:46'Downton Abbey' Star Michelle Dockery's Fiance Dies at 3402:03Ernie Lively, Beloved Actor and Blake Lively’s Dad, Dies at 7424:55Bombshells From ‘Friends: The Reunion,' Beyonce Teases New Music…01:29‘Clarice’ Star Rebecca Breeds Gives a Behind-the-Scenes Look at …01:55‘Friends’ Star Lisa Kudrow Says It Was ‘a Little Intimidating’ H…25:05Stream Queens | May 20, 202102:20Mama June on Trying to Fix Her Broken Relationship With Pumpkin …14:33Dawn Porter on Directing Prince Harry and Oprah Winfrey for ‘The…12:54‘Lucifer’ 5B: D.B. Woodside on ‘Emotional’ Season and Amenadiel …10:48‘Lucifer’ 5B: Tom Ellis and Lauren German on Deckerstar and the …02:44Dixie D'Amelio on Whether She Had Apprehensions Filming New Fami…04:34H.E.R. on Possible Collaboration With Zendaya and Kehlani After …02:46Machine Gun Kelly Dyes Tongue Black and Makes Out With Megan Fox…02:36Tina Knowles-Lawson Gushes Over Spending Quality Time With Her G…05:52‘American Idol’ Winner Chayce Beckham on How He’s Celebrating Hi…08:4090 Day Fiancé: Loren and Alexei Open Up About How Tourette's Has…03:32North West Pokes Fun at Mom Kim Kardashian For Fangirling Over O…08:01‘The Masked Singer’: Jenny McCarthy and Donnie Wahlberg on His S…03:392021 Billboard Music Awards: Backstage With the Night’s Biggest …01:16Drew Barrymore Reacts to Her First Daytime Emmy Nomination (Excl… Michelle Dockery's fiance, John Dineen, died at age 34 on Sunday morning. "The family is very grateful for the support and kindness they have received but would kindly request that they are left to grieve in private," a spokesperson for the Downton Abbeyactress told ET. WATCH: Kate Middleton Visits the Downton Abbey Set!According to ITV, Dineen died while at Marymount Hospice in Ireland after a long battle with cancer. A private funeral is expected to take place on Wednesday in County Cork, Ireland. Dockery, who turned 34 on Tuesday, got engaged to the public relations professional earlier this year. The two started dating in 2013 after being introduced by Dockery's Downton co-star, Allen Leech. MORE: Downton Abbey Stars Puts Water Bottles to Good UseThe actress has kept quiet about her grief, but appeared on Watch What Happens Live last Wednesday. She made no mention of Dineen, who died a few days later.