Claudia Mainau was born in Klosterneuburg and has found her adopted home in southern Burgenland.
Her professional career began as a freelance journalist and later took a different direction from studying medicine than originally planned. The drive for this was her strong desire to be able to help people in difficult situations in their lives. A wish that was made even stronger by her own two-time leukemia. These two events were a big turning point in her life and led to Claudia Mainau's perspectives changing significantly in many areas of her life. It was no longer important to have a career, either at the university hospital or in clinical research, where she worked before her leukemia.