Parse this person name:

Kreszentia Boucsein (1277-1346, flourished 1293-1317)
user
first_name: Kreszentia
last_name: Boucsein
middle_names: []
temporal:
- start: 1277
  end: 1346
  type: life_span
- start: 1293
  end: 1317
  type: flourished
titles: []
extra_info: []
assistant