Parse this person name:

Nicholas Z. Rebecca Rachel K. R. Williams, Wilcoxland, died 1398
user
first_name: Nicholas
last_name: Williams
middle_names:
- Z.
- Rebecca
- Rachel
- K.
- R.
temporal:
- start: null
  end: 1398
  type: life_span
titles: []
extra_info:
- Wilcoxland
assistant