Parse this person name:

Elfi Biggen (1364-1444, flourished 1393-1408)
user
first_name: Elfi
last_name: Biggen
middle_names: []
temporal:
- start: 1364
  end: 1444
  type: life_span
- start: 1393
  end: 1408
  type: flourished
titles: []
extra_info: []
assistant