During the Third Reich, Gustav Fröhlich remained one of the foremost male stars in German film (along with Hans Albers, Willy Fritsch and Heinz Rühmann). Between 1931 and 1935, Fröhlich was married to Hungarian opera star, and Actress Gitta Alpár, with whom he had a child, Julika. He was engaged to the Actress Lida Baarova until she became involved with the Nazi propaganda minister, Joseph Goebbels. There is also an unconfirmed story that Fröhlich slapped Goebbels in a fit of jealous rage. In 1937, he rented his house in Berchtesgaden to Hitler's Architect, Albert Speer. In 1941, he served in the Wehrmacht Landschützen-Regiment and in the same year, married Maria Hajek. They remained married until her death in 1987.