VOC

You cannot.
Not only is it handwritten and abbreviated but also in a pre-literate world spelling was not formalized so two clerks recording the name of a person could quite typically spell them differently, potentially even the same clerk on a different occasion could do this.

Also punctuation can very easily be lost during transcription producing very different results:

"Jan, van Haarlem" is a man from Harleem.
"Jan van Haarlem" is a man who's family at some point was from Haarlem.