Parse this person name:

Marvin Ladeck (1223-1280, flourished 1248-1266)
user
first_name: Marvin
last_name: Ladeck
middle_names: []
temporal:
- start: 1223
  end: 1280
  type: life_span
- start: 1248
  end: 1266
  type: flourished
titles: []
extra_info: []
assistant