What key details about catherine chislova  can be extracted from the following bio?  Bio: catherine gavrilovna chislova -lrb- russian : Екатерина Гавриловна Числова -rrb- -lrb- 21 september 1846 -- 13 december 1889 -rrb- was a russian ballerina . she was the mistress of grand duke nicholas nikolaevich ; they had five children .
The answer to this question is:
- death place is crimea- death date is 13 december 1889- birth date is 21 september 1846- name is catherine chislova- image size is 190px- image is carherine chislova.jpg- birth place is st petersburg , russia- occupation is ballerina .