Parse this person name:

Margret Heidrich (1278-1328, flourished 1302-1323)
user
first_name: Margret
last_name: Heidrich
middle_names: []
temporal:
- start: 1278
  end: 1328
  type: life_span
- start: 1302
  end: 1323
  type: flourished
titles: []
extra_info: []
assistant