エドゥアルト・ベルンシュタイン
Staudinger was born to the gymnasium (high school) teacher Franz Staudinger and his wife Auguste Staudinger, née Wenck, and was baptised as a Protestant. He had two brothers and one sister. His father was a leading theorist of the cooperative movement and was connected to prominent Social Democrats such as August Bebel and Eduard Bernstein. His friendship with the latter lasted his whole life.