Parse this person name:

Matthias Koch II-Dehmel (1839-1897, flourished 1869-1891)
user
first_name: Matthias
last_name: Koch II-Dehmel
middle_names: []
temporal:
- start: 1839
  end: 1897
  type: life_span
- start: 1869
  end: 1891
  type: flourished
titles: []
extra_info: []
assistant