Dora Pejačević was born in Budapest into a noble family with Bulgarian roots. Despite her aristocratic background, she chose to follow a path in music, encouraged by her mother's own musical skills. While living in Našice and visiting cities such as Vienna and Munich, she developed an interest in literature, philosophy, and social matters. Pejačević taught herself composition and drew inspiration from well-known figures like Rainer Maria Rilke and Karl Kraus. In 1913, she created a piano concerto, making her the first Croatian composer to write one. Her music evolved from romanticism to impressionism and expressionism, mirroring the difficult times of World War I. During the war, she worked as a paramedic, and her musical works began to include texts from Kraus, Rilke, and Nietzsche, showing deeper artistic influences. Pejačević died in 1923 following childbirth. She is remembered as an important Croatian composer, particularly for her Symphony in F-sharp minor, which many see as the first modern Croatian symphony. There are ongoing efforts to publish and share her large number of compositions. Her music has also reached audiences worldwide, including a performance at the 2023 BBC Proms in London. Additionally, her life story was the basis for the 1993 Croatian film "Countess Dora."