Baby joy! Billionaire Merivale owner Justin Hemmes, 52, welcomes his first child with model partner Madeline Holtznagel, 28

By JADE WATKINS FOR DAILY MAIL AUSTRALIA

Published: 06:53 BST, 15 June 2025 | Updated: 06:53 BST, 15 June 2025

Justin Hemmes has welcomed his first child with his long-time partner Madeline Holtznagel.

The model, 28, announced their son’s arrival on Instagram on Sunday alongside a gallery of sweet photos.

‘Jaeger Justin Hemmes ❤️ 1.06.25,’ she captioned the post.

This is the model’s first child with the billionaire Merivale owner. He shares two daughters – Alexa, nine, and Saachi, seven – with his ex-partner Kate Fowler.

Madeline recently announced the sex of their baby in an interview with Stellar magazine, and said she was thrilled because she wanted a ‘new journey’ with Justin.

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Justin Hemmes is said to have welcomed his first child with his long-time partner, Madeline Holtznagel

Madeline showed off her big baby bump as she arrived back to Justin’s $100m Vaucluse mansion last week 

‘I always thought I was going to have a boy. I knew I was going to be a boy mum,’ she said. 

‘Justin has two beautiful little girls, so having a boy, it’s like a whole new journey together. 

‘[The baby] is going to be his little best mate.’

She said she previously kept details of her pregnancy private, but was ready to share her journey.

‘I keep a lot of my life private and I don’t share a lot online anyway, so [being pregnant] wasn’t really something that I was going to share online,’ she said.

‘I haven’t posted about it and it’s been nice to have some quiet time off Instagram.

‘But obviously because I am in the public eye and we do get photographed quite a lot, I think now I’m at this point in my pregnancy where it’s nice for me to be able to share some nice photos’.

Madeline also revealed she has sought advice from her older sisters Anna and fellow model Simone, who both have had children.

In November, an insider confirmed the exciting news of Madeline’s pregnancy to Daily Mail Australia and revealed a friend of Justin’s recently moved out of his Vaucluse mansion to make room for their growing family 

Justin shares two daughters – Alexa, nine, and Saachi, seven – with his ex-partner Kate Fowler 

In November, an insider confirmed the exciting news of Madeline’s pregnancy to Daily Mail Australia and revealed a friend of Justin’s recently moved out of his Vaucluse mansion to make room for their growing family. 

The business mogul, who has a net worth of $1.39billion, began dating Madeline in 2019 when she was 22 and he was 47 after his split from Fowler in 2018. 

Madeline is the younger sister of fellow Aussie model Simone Holtznagel, who welcomed her first child, a daughter called Gia, in March 2024 with her now-ex-boyfriend Jono Castano.

Justin and Madeline have gone from strength-to-strength since going public in 2019 and even sparked engagement rumours in June 2023. 

Eagle-eyed fans noticed Madeline was wearing a ring on her wedding finger as they questioned whether Justin had popped the question.

A picture showed her sporting the jewellery as she cuddled up to Justin while enjoying a bowl of Udon noodles together at a restaurant in Japan.

But the bling appeared to be an emerald and diamond promise ring, and another photograph showed her wearing a different ring on the same finger as she posed for a selfie.

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Baby joy! Billionaire Merivale owner Justin Hemmes, 52, welcomes his first child with model partner Madeline Holtznagel, 28

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