Parse this person name:

Ronny Lange (1234-1292, flourished 1256-1280)
user
first_name: Ronny
last_name: Lange
middle_names: []
temporal:
- start: 1234
  end: 1292
  type: life_span
- start: 1256
  end: 1280
  type: flourished
titles: []
extra_info: []
assistant