Family and cast descended to Addington Palace in Croydon for her royal wedding-themed birthday celebrations - and it was a bit of a tear-jerker.
Nanny Pat welled up as Jessica Wright gave her nan a touching photo book of her life, including a photo of her late husband Charles Brooker on the cover.
There were more tears to be had as Jess took to the stage to perform 'Make You Feel My Love' - something which left the whole room in tears.
Carol Wright called her mum an "amazing inspirational lady", while Nanny Pat said in a speech: "I want to say a big thank you to sharing this special birthday. You only live once, what is it, yoyo? Thank you very much, thank you."
Co-star and family friend James 'Arg' Argent - who often calls himself the Ian Beale of TOWIE - tweeted: "Happy Birthday Nanny Pat!!! Forget Me, Mark and Joey etc...You are the biggest #TOWIE Legend ever!!! Love you."
Aww, how sweet?
Happy Birthday Nanny Pat!!! Forget Me, Mark and Joey etc...You are the biggest #TOWIE Legend ever!!! Love you x— James Argent (@RealJamesArgent) November 11, 2015
Nanny Pat has been the star of the show for some five years now.
When she's not offering words of wisdom, she's coming out with some unintentionally brilliant one-liners and keeping on top of orders of her famous sausage plait. We heart Nanny Pat!
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