Denise, who died from pancreatic cancer aged 83 on 1st April, was a veteran of the ITV show This Morning and her colleagues have been the first to express their condolences.
Eamonn Holmes and wife Ruth Langsford, who both presented alongside Denise during her 28-year stint, expressed their sadness via Twitter as they travelled to Sunderland for the ceremony.
Eamonn said; 'Heading with @RuthieeL to Sunderland. It's Denise Robertson's funeral today. A sad day but we will also celebrate her life.'
Heading with @RuthieeL to Sunderland. It's Denise Robertson "s funeral today. A sad day but we will also celebrate her life .— Eamonn Holmes (@EamonnHolmes) April 13, 2016
Wife Ruth added; 'With @EamonnHolmes on our way to Sunderland to pay our final respects and say goodbye to this wonderful lady x.'
Phillip Schofield also said; 'Hello Sunderland, what a shame to be here under such sad circumstances, but I'm sure we'll give our Denise a fitting send off.'
Hello Sunderland, what a shame to be here under such sad circumstances, but I'm sure we'll give our Denise a fitting send off— Phillip Schofield (@Schofe) April 12, 2016
Followed by another tweet saying; 'I hate this tie, every time I put it on I'm sad!'
I hate this tie, every time I put it on I'm sad! pic.twitter.com/9IpB0iUpZu— Phillip Schofield (@Schofe) April 13, 2016
ITV were the first to confirm the news at the beginning of the month in an official statement; 'Such sad news- our friend and colleague Denise Robertson has lost her short but determined battle against cancer.
Please share your memories of her here. We are working on a special programme reflecting her work and achievements including many of your messages of condolence.'
The Agony Aunt had opened up about her condition on the popular daytime TV show, apologising to viewers for her recent absence.
At the time she said, 'I'm sorry I've not been around for a couple of weeks but a persistent health issue has turned into something quite a lot bigger. I've been diagnosed with pancreatic cancer.'
Denise had been part of the This Morning family since 1988, and was well loved by viewers.
Following her initial announcement she returned to This Morning to express how comforting she found the well wishes of friends and fans that had been arriving in a steady stream since she had shared her news.
Among the well wishers was This Morning presenter Phillip Schofield, who tweeted: 'Sending all my love to a unique and wonderful lady xxx'.
Since Denise's passing messages have been pouring in from fans across social media. One user Gayle said, 'Awww I've grown up watching Denise Robertson. Such sad news again today RIP' while Laura Butt said 'So sad to hear Denise Robertson of @itvthismorning has passed away, thoughts go out to her family, friends and colleagues :( #rip’
Awww I've grown up watching Denise Robertson. Such sad news again today RIP https://t.co/QTS4vt3Wxp— Gayle (@belfastgal81) April 1, 2016