Parse this person name:

Schmidtke, Gaetano A. Helmut., Iserlohn (1365-1408)
user
first_name: Gaetano
last_name: Schmidtke
middle_names:
- A.
- Helmut
temporal:
- start: 1365
  end: 1408
  type: life_span
titles: []
extra_info:
- Iserlohn
assistant