Ferdinand Avenarius (20 December 1856, in Berlin – 22 September 1923, in Kampen) was a German lyric poet, a leading representative of the culture reform movement of his time and the first popularizer of Sylt.
Avenarius was born in Berlin. His father, Eduard Avenarius, a publisher from Leipzig, founded a joint subsidiary company with the Brockhaus publishing house. His mother, Cäcilie née Geyer, was a daughter of the actor and painter Ludwig Geyer. Eduard Avenarius represented the company in Paris, where he consorted with Heinrich Heine and Richard Wagner, the latter being the step-uncle of Ferdinand Avenarius and his brother, the philosopher Richard Avenarius.Kunstwart und Dürerbund. Ein Beitrag zur Geschichte der Gebildeten im Zeitalter des Imperialismus. Vandenhoeck u. Ruprecht, Göttingen 1969. . However, there are speculations in science that Ludwig Geyer was not only the stepfather but the biolo