Sissi. Anton Profes

The first movie in the trilogy, focuses on the fateful meeting of the Emperor Franz Joseph (Karlheinz Böhm) and his beautiful bride, Elizabeth of Bavaria (Romy Schneider). Elizabeth, a free spirit and still immature young girl, was reluctant to become empress and take up the many responsibilities that came with that role. Yet, within the year, the couple was married.
In the second movie Elizabeth, now married, is doing her best to be a good empress. She's learning foreign languages, especially Hungarian, which she, like the country, adores, and has a captivating, open, manner capable of charming all her subjects, even the most rebellious.
In the last movie of the trilogy, Sissi continues to capture the hearts of all she meets, but her marriage is still struggling and her health deteriorating. Although the movie doesn't show the catalyst for her illness, which was the death of her first child, Sophie. Instead, throughout the movie, Sissi and Franz only have one child, Gisela.

Anton Profes (1896–1976) was an Austrian composer. He finished his education as a musicologist in Prague, afterwards he got engagements as a bandmaster, first in Karlsbad, later in other cities like Hamburg and Berlin among others. He gave up his activity as a bandmaster in 1921 and he became a freelance composer of well-known hit songs which made him well-known to a huge audience. For most moviegoers especially his compositions for the Sissi movies with Romy Schneider may be remembered today.
Because of his success the film business became aware of him too and Anton Profes wrote many film compositions from 1930.