Parse this person name:

Matthias Vegt, 1403-1471, flourished 1428-1444
user
first_name: Matthias
last_name: Vegt
middle_names: []
temporal:
- start: 1403
  end: 1471
  type: life_span
- start: 1428
  end: 1444
  type: flourished
titles: []
extra_info: []
assistant