A memory card in tribute of the beloved grandmother will appear at the end of this evening's The Only Way Is Essexmas special.
Nanny Pat - real name Patricia Brooker - has passed away at the age of 80 following a short illness.
In a statement to The Mirror, a rep for the show said: "We are absolutely devastated to hear the sad news about our beloved Nanny Pat. Patricia has been at the heart of TOWIE from the very beginning and we will miss her terribly. Our thoughts are with the Wright family at this very sad time."
News of Nanny Pat's death was released by her family this morning, who said: "Sadly our amazing, courageous and beautiful Nanny Pat passed away this morning after a short illness. We are overwhelmed by sadness, and the whole family ask for privacy at this horrible time."
Her grandchildren Mark and Jessica Wright have both said they are "heartbroken," while a slew of TOWIE stars of past and present have shared their memories and condolences to Twitter.
Nanny Pat was married to husband Charlie for more than 50 years before his death. She has five children, 14 grandchildren and six great-grandchildren.
The Only Way Is Essexmas airs tonight at 10pm on ITVBe.