Born on 3 November 1864 on the island of
Bogø, Nanna Berg was the daughter of the politician
Chresten Poulsen Berg (1829–91) and the publisher Maren Bertelsen (1836–1906). She was brought up in a
Grundtvegian milieu, her father being the founder of Bogø's Navigation School. In 1876, she moved with her family to
Hillerød where her mother looked after her while her father became involved in publishing and politics. When the family settled in
Copenhagen in 1884, she attended
N. Zahle's School where she was said to have been extraordinarily hard-working and gifted. ==Career==