as she announced her grandmother has died just three weeks after having a stroke. The actress took to Instagram to share the sad news with fans. Her "nanna" Nikki Roberts was 99 years old when she died.

Naomi shared a carousel of pictures of herself with Nikki and her family. In the caption, she shared an emotional tribute: "My darling Nanna has left this world but her spirit will never leave us. I'm truly blessed to have had the most wonderful relationship with her.

She is such a huge part of who I am: her core values, her work ethic, and her mischievous humor and joy of life. I cannot express how deeply grateful I am for all that she gave me and her wonderful daughters." "My mum and aunts are all in pieces today, but we know what a great life she had.

She just kept cracking on because she loved her life and her family." Naomi explained how Nikki "lived 3 more weeks after a massive stroke because, in full beast mode, she showed us that when she was finally ready to 'peg it- she'd peg it'." Nikki made it to her 99th birthday, allowing them to have "one more family gathering".

Naomi continued: "I'll never forget her wicked laugh, her feisty spirit, her no-nonsense attitude, her no waste policy!! She'd be trimming the mold off the bread and cheese: 'you don't need an expiration date— that's what a nose is for!'" Naomi finished her tribute by promising to always remember Nikki's stories and said her "memories live on". Naomi's fans and famous friends offered their condolences .