Parse this person name:

David Momberg, 1348-1423, flourished 1368-1387
user
first_name: David
last_name: Momberg
middle_names: []
temporal:
- start: 1348
  end: 1423
  type: life_span
- start: 1368
  end: 1387
  type: flourished
titles: []
extra_info: []
assistant