Parse this person name:

Mechthild Heydrich (1830-1870, flourished 1854-1865)
user
first_name: Mechthild
last_name: Heydrich
middle_names: []
temporal:
- start: 1830
  end: 1870
  type: life_span
- start: 1854
  end: 1865
  type: flourished
titles: []
extra_info: []
assistant