Question: What is the date of death of Anna Stang's husband?
Sentence (from "Anna Stang"): Anna Stang (May 18, 1834 – December 23, 1901), née "Anna Sophie Margrethe Holmsen", was a Norwegian feminist, liberal politician and the second President of the Norwegian Association for Women's Rights, serving from 1885 to 1886.
Relevant evidence: No