Sienna Miller’s father battling Alzheimer’s Disease as sister Savannah posts heartbreaking tribute on Father’s Day: ‘His life and spark has gone out’

Sienna Miller’s father, former art dealer Edwin Miller, has previously been revealed to have ailing health (Picture: Instagram/@savannahmiller/Getty)

Sienna Miller’s father Edwin Miller has Alzheimer’s disease, with his family saying he is ‘slowly withdrawing from the world.’

The Hollywood star’s sister, Savannah Miller, 44, shared the news yesterday on social media alongside a picture of their father.

Alzheimer’s disease is a brain disorder that slowly destroys memory and thinking skills, according to the National Institute of Health.

She uploaded a heartfelt Instagram post about former art dealer Edwin, saying that she ‘missed him beyond description.’ 

‘Here he is.. my papa, the man with the deepest heart, wisest words, and the most incredible hug giver to ever live. I miss him beyond description,’ she wrote in the touching post to mark Father’s Day.

‘As his Alzheimer’s progresses and he slowly withdraws from the world, my heart aches for this man. His hugs are still as deep, thank God, but the life and spark, that was all-pervading, has gone out.’

She went on to describe the condition as ‘such a cruel and complicated thing to navigate,’ before ending the post with a message to others affected.

Savannah Miller shared a photo of her father smiling at the camera to update her followers (Picture: Instagram/@savannahmiller)

Sienna’s sister Savannah revealed their father Edwin is suffering from the disease (Picture: Jose Perez/Bauer-Griffin/GC Images)

In a touching post marking Father’s Day, Savannah detailed the hardships of the family’s situation (Picture: Bruce Glikas/FilmMagic)

Edwin is a former art dealer who has four children, one of which is Hollywood icon Sienna (Picture: Todd Williamson/Getty Images for Amazon Studios)

Savannah extended her love to all those who struggle with Father’s Day (Picture: Gregg DeGuire/WireImage)

She wrote: ‘Sending love to everyone for whom today is hard.’

Weeks prior, Savannah shared another post about her father that showed a family reunion with her sister Sienna, 41, as well as brothers Stephen and Charles Miller.

Edwin shares his children with former model Jo Miller, who was married to Edwin until 1987. He has since gone on to marry the interior designer Kelly Hoppen.

The siblings can be seen beaming at the camera, with their father Edwin stealing focus as the centrepiece of the adorable pic.

Savannah previously shared a rare full family photo alongside their father (Picture: Instagram/@savannahmiller)

Savannah wrote another touching caption as she shared the picture to her Instagram, describing her family as ‘remarkable,’ and hailing the love they have for each other.

‘Today, for the first time in six years, we were all together with our dad. A lot has changed in that time, with his declining health, but at the same time nothing at all,’ she wrote.

‘Love feels the same, as deep and true as it ever did. We may be oceans apart but our love for each other and our papa transcends it all. In these very real moments, I am reminded, gracefully, what it is all about.

‘Love and human connection is all we ever truly have and I am deeply grateful for the love and connection I have with these four remarkable human beings, my family.’

MORE : Katie Price’s ex Kieran Hayler tears up in Father’s Day video and claims he hasn’t seen their kids ‘properly in six months’

MORE : Janet Street-Porter was actually told she should be ‘put down’ over her ‘common accent’

Sienna’s sister Savannah delivered the news in a devastating social media post.