Parse this person name:

Dagobert Steuer (1449-1493, flourished 1473-1484)
user
first_name: Dagobert
last_name: Steuer
middle_names: []
temporal:
- start: 1449
  end: 1493
  type: life_span
- start: 1473
  end: 1484
  type: flourished
titles: []
extra_info: []
assistant