Parse this person name:

Nada Siegfried U. Mälzer, Tuttlingen, flourished 1833-1869
user
first_name: Nada
last_name: Mälzer
middle_names:
- Siegfried
- U.
temporal:
- start: 1833
  end: 1869
  type: flourished
titles: []
extra_info:
- Tuttlingen
assistant