Parse this person name:

Mattias Jähn (1294-1369, flourished 1319-1333)
user
first_name: Mattias
last_name: Jähn
middle_names: []
temporal:
- start: 1294
  end: 1369
  type: life_span
- start: 1319
  end: 1333
  type: flourished
titles: []
extra_info: []
assistant