Parse this person name:

Richard Isabelle K. Robert, Valette-sur-Morin, died 1221
user
first_name: Richard
last_name: Robert
middle_names:
- Isabelle
- K.
temporal:
- start: null
  end: 1221
  type: life_span
titles: []
extra_info:
- Valette-sur-Morin
assistant