Marie Theres Relin, born 1966, actress (Goldene Kamera), best-selling author, founder of the „Hausfrauenrevolution“ (Housewives' Revolution), tour operator, cultural organiser of the Region18 cinema events and founder of the charity cinema „Kino Frauen aller Kulturen“ (Cinema Women of All Cultures won the Integration-Award 2019).
The daughter of Maria Schell, she comes from a family of artists that has been important for generations.

Her new book, written with her ex-husband Franz Xaver Kroetz, published in autumn 2023 by dtv: „Szenen keiner Ehe“ (Scenes of No Marriage) became a bestseller.

In 2024, she is touring with readings and writing a novel "Letters to an unborn love", as well as a TV series "Grandma to go".

In January 2025, she was honored with the Lifetime Achievement Award GOLDEN ARROW in Vienna.
Bayerischer Rundfunk documents her life in Lebenslinien (broadcast in December 2025).

Relin was married to Franz Xaver Kroetz, from whose marriage she has three children. She lives in Wasserburg am Inn and Tenerife.