Johanna Maria Semper
- Born on December 26, 1845 in Hamburg
- Deceased on March 14, 1918, at the age of 72 years
Parents
- Johann Carl Semper (1796 - 1881)
- Luise Reincke (1811 - 1877)
Family
- Married on March 7, 1878, with Richard Avenarius (1843 - 1896), philosophe