This is the 7043rd most frequent Polish word.
hartwich
The word "hartwich" does not exist in Polish or has no meaning in standard usage.
The surname 'Hartwich' is used here as a person's name, indicating the subject performing an action.
Hartwich zlecił przygotowanie materiałów na konferencję.
Hartwich commissioned the preparation of materials for the conference.
Again, 'Hartwich' is used as a proper noun to refer to a specific person, who is being requested to do an action.
Czy Hartwich mógłby potwierdzić swoje uczestnictwo?
Could Hartwich confirm their attendance?
In this sentence, 'Hartwich' is used as a family name, indicating the group associated with that surname.