He was a student at Hartvig Nissens skole .
He was the son of Supreme Court Attorney Christopher Hansteen ( 1822 - 1912 ) and Lagertha Cecilie Wulfsberg ( 1820 - 1897 ) .
son was a son at Hartvig Nissens skole .
He was the son of Supreme Court Attorney Christopher Hansteen ( 1822 - 1912 ) and Lagertha Cecilie Wulfsberg ( 1820 - 1897 ) .