Friederike, called Ika Freudenberg (25 March 1858 in Raubach/Neuwied – 9 January 1912 in Munich) was a leading protagonist of the women's movement in Bavaria.

[3] Both women were active in an association for female education, where they met Munich-based photographers and feminists Anita Augspurg and Sophia Goudstikker.

[4] Due to Augspurg's and Goudstikker's good connections in the Schwabing Bohème, members soon included prominent women such as writer Gabriele Reuter.

Male members included poet Rainer Maria Rilke and satirist Ernst von Wolzogen who once immortalised the association's leaders in his satire The Third Sex (1899).

The text is peculiar, in that it contains good-natured mockery and at the same time publicly alludes to the fact that most of the figureheads of the associations were lesbians.