Madeline Holtznagel – Bio, Career, Age, Achievements

INTRODUCTION

Madeline Holtznagel is an Australian model and social media personality known for fashion, luxury lifestyle and her connection to one of Australia’s prominent hospitality families. She is also the younger sister of model Simone Holtznagel.

Birth name: Madeline Holtznagel

Career

Model and social media personality

Birthday

October 20, 1996

Age

Zodiac Sign:

Libra

Birthplace:

Wollongong, New South Wales, Australia

Nationality:

Australian

HOW BIG IS Madeline Holtznagel ON THE NET?

Madeline maintains a selective social-media presence centered on fashion, events and lifestyle. Her public profile has grown through modeling, high-profile appearances and sustained Australian media interest.

HOW DID Madeline Holtznagel become famous?

She became publicly recognized through modeling and social media before wider entertainment coverage followed her relationship with Merivale chief executive Justin Hemmes.

BEFORE THE FAME

Madeline grew up in the Wollongong area and initially worked around beauty and modeling. Her sister Simone had already established a national modeling profile.

CLOSE WITH (ASSOCIATED);

Madeline is the younger sister of model Simone Holtznagel and has appeared publicly with her at fashion and entertainment events. Her partner is hospitality entrepreneur Justin Hemmes.

Personal LIFE and Relationship

Madeline has been in a long-term relationship with Justin Hemmes. The couple welcomed a son, Jaeger Justin Hemmes, in June 2025, and their relationship continued to attract engagement speculation in 2026.