Parse this person name:

Jason le Gulcher, 1219-1298, flourished 1243-1266
user
first_name: Jason
last_name: le Gulcher
middle_names: []
temporal:
- start: 1219
  end: 1298
  type: life_span
- start: 1243
  end: 1266
  type: flourished
titles: []
extra_info: []
assistant