Parse this person name:

Lenn Tillmanno, 1276-1339, flourished 1291-1302
user
first_name: Lenn
last_name: Tillmanno
middle_names: []
temporal:
- start: 1276
  end: 1339
  type: life_span
- start: 1291
  end: 1302
  type: flourished
titles: []
extra_info: []
assistant